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Browse Plants

Narrowed By:Uses: Ground Covers + Botanical Name: S - U
Displaying 1 - 94 of 94 listings   1 | 2 | 3 | 4 | 5View All Sort By: Sort
Salvia × superba Salvia × superba
(Hybrid sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This hybrid of S. nemorosa and S. sylvestris is a drought-tolerant perennial that lends vivid purple-blue hues to the garden from summer to early fall on 1.5- to 3-foot-tall spikes. Deadheading prolongs bloom. The spikes rise from a clump of silvery green leaves that grows to about 2 feet tall and wide.

no image available Salvia × sylvestris 'Blue Hill'
(Meadow sage)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This drought-tolerant perennial bears abundant pure blue flower spikes in early summer and until fall if spent flowers are removed promptly. It forms an erect clump 20 inches tall by 18 inches wide, with wrinkled, softly hairy leaves.

Salvia × sylvestris 'May Night' Salvia × sylvestris 'May Night'
(Meadow sage)
(5 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This drought-tolerant perennial bears deep violet-blue flower spikes in early summer and then sporadically if spent flowers are removed promptly. It forms an erect clump 2.5 feet tall by 1.5 feet wide, with wrinkled, soft hairy leaves.

Salvia argentea Salvia argentea
(Silver sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This biennial or short-lived perennial is grown for its massive, downy-silver rosettes of foliage. In its second year, it spawns plumes of white or pinkish flowers with gray calyces in mid- to late summer. The plant has a spiky form, 3 feet tall by 2 feet wide. Locate it where the rosettes can be easily seen.

Salvia farinacea Salvia farinacea
(Mealycup sage)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This perennial forms a shrubby upright clump 2 feet tall by 1 foot wide, with white mealy stems and glossy green leaves. It bears deep, lavender-blue flowers on tall spikes from early summer to frost. Salvias are some of the showiest plants for containers, annual borders, and mixed borders. Butterflies and hummingbirds love them. 

Salvia farinacea 'Victoria' Salvia farinacea 'Victoria'
(Mealycup sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This compact perennial forms a bush less than 1.5eet tall by 1 foot wide, with indigo stems and glossy green leaves. It bears deep, navy blue flowers on medium spikes from early summer to frost.

Salvia greggii Salvia greggii
(Autumn sage)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This native of Texas and Mexico has a woody base and can form a dwarf, evergreen shrub, 1 foot tall by 1 foot wide. It has small, leathery leaves and bears bright flowers in shades of pink, purple, or yellow from early summer to frost.

Salvia microphylla var. neurepia Salvia microphylla var. neurepia
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This native of the American Southwest and Mexico forms an evergreen shrub or shrubby perennial with dark, glossy leaves that are small (but slightly larger than most microphyllas) and softly toothed. It blooms off and on all summer, and again, more vigorously, in late summer and autumn, in blossoms of cherry-red. Its attractive foliage cloaks the plant to the ground, so it is well suited to the front of the border. It can grow to 4 feet tall and twice as wide.

no image available Salvia nemorosa
(Sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This drought-tolerant perennial produces flower spikes in shades of violet, purple, or white to pink, with purple bracts. It blooms from early summer to autumn; reblooming is most reliable if spent flowers are promptly deadheaded. It has wrinkled leaves and forms an erect clump 3 feet tall by 2 feet wide. This species is most noted for its many S. sylvestris hybrids.

Salvia nemorosa 'Caradonna' Salvia nemorosa 'Caradonna'
(Sage)
(5 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This drought-tolerant perennial is noted for its vivid indigo flowers along deep purple-black stems, which gives it a bicolor appearance. It blooms in early summer and then sporadically if spent flowers are deadheaded. It forms an upright clump, with the flower spikes rising to 2 feet in height; its wrinkled, softly hairy leaves form a mound 1 foot high. Plants spread 1 or 2 feet wide. These are some of the showiest plants for containers and mixed borders. Butterflies love them. 

Salvia officinalis Salvia officinalis
(Common sage, Culinary sage, Purple sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Cooks and gardeners alike are indebted to this classic, evergreen perennial for the unique, pungent flavor and aroma that its gray-green leaves produce. It forms a 2.5-foot-tall by 3-foot-wide bush with woody stems that may be trimmed back to newly emerging growth or strong stems in spring. In early to mid-summer, it sends up lavender-purple flower spikes; it has both ornamental and culinary qualities in an herb garden. It tolerates alkaline soils, but not wet winter conditions.

Salvia officinalis 'Berggarten' Salvia officinalis 'Berggarten'
(Common sage, Culinary sage, Purple sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Cooks and gardeners alike are indebted to this evergreen perennial for the unique, pungent flavor and aroma that its gray-green leaves produce. S. 'Berggarten' is more compact than the species, forming a 2-foot tall by 3-foot wide bush with woody stems that may be trimmed back to newly emerging growth or strong stems in spring. In early to mid-summer, it sends up purple flower spikes. It boasts attractively rounded leaves and, like the species, has both ornamental and culinary qualities in an herb garden. It tolerates alkaline soils, but not wet winter conditions.

Salvia officinalis 'Icterina' Salvia officinalis 'Icterina'
(Golden variegated sage, Common sage, Culinary sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Cooks and gardeners alike are indebted to this evergreen perennial for the unique, pungent flavor and aroma that its gray-green leaves produce. This charming cultivar has green leaves with irregular yellow margins. It forms a 1.5- to 2-foot-tall and wide bush with woody stems that may be trimmed back to newly emerging growth or strong stems in spring. In early to mid-summer, it occasionally sends up lavender-purple flower spikes; it has both ornamental and culinary qualities in an herb garden. It tolerates alkaline soils, but not wet winter conditions.

Salvia officinalis 'Purpurascens' Salvia officinalis 'Purpurascens'
(Common sage, Culinary sage, Purple sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Cooks and gardeners alike are indebted to this evergreen perennial for the unique, pungent flavor and aroma that its gray-green leaves produce. This cultivar has leaves suffused with steely-gray purple. It forms a 1.5-foot-tall and wide bush with woody stems that may be trimmed back to newly emerging growth or strong stems in spring. In early to mid-summer, it sends up lavender-purple flower spikes; it has both ornamental and culinary qualities in an herb garden. It tolerates alkaline soils, but cannot survive wet winter conditions.

Salvia officinalis 'Tricolor' Salvia officinalis 'Tricolor'
(Common sage, Culinary sage, Purple sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Cooks and gardeners alike are indebted to this evergreen perennial for the unique, pungent flavor and aroma that its gray-green leaves produce. This cultivar has ornamental value, too—green leaves with white margins which are suffused with pink or purple. It forms a 1- to 1.5-foot-tall and wide bush with woody stems that may be trimmed back to newly emerging growth or strong stems in spring. In early to mid-summer, it sends up lavender-purple flower spikes; it has both ornamental and culinary qualities in an herb garden. It is tolerant of alkaline soils, but cannot survive wet winter conditions.

Salvia pratensis Salvia pratensis
(Meadow clary)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This woody-stemmed perennial produces sticky spikes of deep violet or, rarely, white to pink flowers. It blooms from early summer to autumn; reblooming is most reliable if spent flowers are deadheaded promptly. It has wrinkled leaves and forms an upright clump 3 feet tall by 1 foot wide. This salvia is most noted for its many hybirds with S. nemerosa.  

no image available Sanvitalia procumbens
(Creeping zinnia)
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Virtually covered in yellow, daisy-type flowers throughout summer, creeping zinnia makes a cheerful addition to any garden. Plants are mat-forming with bright green foliage. Easy to grow and tolerant of heat and drought, creeping zinnia is a generous bloomer that doesn’t need deadheading. It makes a wonderful ground cover and looks great planted among rocks or along pathways. It’s an excellent filler and spiller for containers, and it combines nicely with just about any summer-blooming plant

Saruma henryi Saruma henryi
(Upright wild ginger)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Saruma henryi is as sublime as it is uncommon. Its velvety leaves and distinctively shaped, soft yellow flowers make it a superb specimen in a shady border, where it can contrast with more finely textured plants.

Sasa veitchii Sasa veitchii
(Kuma bamboo grass, Kuma zasa)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This dwarf bamboo has deep-green leaves that become bicolored with the onset of autumn. The leaves then exhibit straw-colored margins, which persist into spring in warmer zones. It is a striking plant en masse or as groundcover in a woodland garden. It usually grows to 2 or 3 feet tall, but may reach 5 feet tall in deep shade.

Saxifraga stolonifera Saxifraga stolonifera
(Strawberry geranium)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant is a rosette-forming evergreen perennial with kidney-shaped to rounded leaves. It produces white flowers with red or yellow spots in summer.

Schizachyrium scoparium Schizachyrium scoparium
(Little bluestem, Prairie beard grass)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Little bluestem is a tidy, finely textured clumping grass with a blue-green summer color. Its silvery seed heads rise to a height of nearly 2 feet in late summer and are at their best when backlit in the morning or afternoon sun. In fall, the grass turns a rosy rust color that lasts all winter.

Sedum cauticola Sedum cauticola
(Stonecrop)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This Japanese native is perfect for the rock garden. It is a compact species with blue-green foliage and pink stems, and bears purplish-red flowers in fall. Sedum cauticola grows to about 3 inches tall and a foot wide.

Sedum kamtschaticum Sedum kamtschaticum
(Stonecrop)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This tough, drought-tolerant species has glossy deep green leaves and, in early summer, half-inch golden yellow flowers that open from pink buds. It grows to about 6 inches tall and a little wider and makes a good groundcover. 

Sedum kamtschaticum 'Variegatum’ Sedum kamtschaticum 'Variegatum’
(Stonecrop)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This variety is more compact than the species, and its leaves are variegated with creamy margins. In late spring to summer, its star-shaped yellow flowers open from pink buds and mature to crimson. It grows to just 4 inches tall and 12 inches wide.

Sedum kamtschaticum 'Weihenstephaner Gold' Sedum kamtschaticum 'Weihenstephaner Gold'
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This low-growing sedum has dependable, dark bronzy green foliage and prolific flowering. New spring growth is a welcome, cheerful red. Prolific, star-shaped flowers are golden yellow with pinkish orange overtones and cover the plant twice during the growing season. Plants grow to just 2-4 inches tall and 10 inches wide.

Sedum rupestre Sedum rupestre
(Rocky stonecrop, Stone orpine)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is a vigorous, mat-forming evergreen species with small gray-green leaves and terminal clusters of star-shaped, vibrant yellow flowers in summer. The drooping buds face upward when they open. It grows to 4 inches tall and 2 feet across.

Sedum rupestre 'Angelina' Sedum rupestre 'Angelina'
(Stone orpine)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This vigorous, mat-forming, evergreen species has electric golden-yellow foliage that holds its color through the heat of summer. The foliage tips sometimes develop an orangey hue. In June and July, 'Angelina' has terminal clusters of star-shaped, vibrant yellow flowers. The drooping buds face upward when they open and the plant can grow to 6 inches tall and 12 inches wide. It is superlative as a groundcover, spilling over rock walls, and in containers. It also makes an excellent accent for plants with dark foliage.

Sedum spurium 'Fuldaglut' Sedum spurium 'Fuldaglut'
(Two-row stonecrop)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This mat-forming species forms a carpet of rosy-red flowers in late July and August, contrasting against green leaves with bronzy-maroon highlights.

Sesleria autumnalis Sesleria autumnalis
(Autumn moor grass)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This cool-season grass begins the season with bright green blades. In late summer and early fall, it produces silvery inflorescences which complement its golden-hued autumn foliage and persist throughout the winter.

Setcreasea pallida 'Purple Heart' Setcreasea pallida 'Purple Heart'
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Purple Heart' is a trailing, tender perennial with purple stems and violet-purple leaves that produces pink flowers in summer. This plant is mainly grown for its foliage (leaves can reach 7 inches in length); best color is achieved in bright sunlight and a dry, cramped root zone. It is excellent as a groundcover or in containers or hanging baskets. It grows 8-12 inches tall and 16 inches wide.

Sisyrinchium graminoides Sisyrinchium graminoides
(Blue-eyed grass)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This clump forming, semi-evergreen, grass-like perennial blooms in summer, with a long succession of yellow-centered blue flowers. It grows to 20 inches high and 6 inches wide, and self-sows easily.

no image available Sisyrinchium striatum
(Satin flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

In early summer, these grass-like perennials produce multiple spikes of small, pale yellow blooms with dark yellow centers and faint purple stripes. The flowers rise above gray-green foliage. Native to open woods, meadows, and prairies of South America, these adaptable wildflowers tolerate a wide range of conditions and naturalize easily. The summer blossoms each open for just one day with the morning sun and close at dusk. Rarely do the blooms open on cloudy days. Plants grow to 3 feet tall and 10 inches wide.

Smilacina racemosa Smilacina racemosa
(Solomon's plume, False Solomon's seal)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This shade-loving perennial produces plumes of creamy white blossoms in spring, followed by mottled yellowish-green berries that turn to deep red. The fragrant, ivory white blossoms occur on the ends of arching branches, distinguishing them from true Solomon's seal (Polygonatum). The plant grows to 3 feet high and 2 feet wide.

Solidago cutleri 'Goldrush' Solidago cutleri 'Goldrush'
(Goldenrod, Alpine goldenrod, Cutler's alpine goldenrod)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Goldrush' heralds the coming of fall with masses of tiny, yellow flowers for four weeks in August and September. Its compact size—about a foot tall—makes it a great candidate for a rock garden or border edge.

Solidago juncea Solidago juncea
(Goldenrod, Early goldenrod, Yellow top)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is the first goldenrod to bloom, featuring bright yellow, plume-like panicles in midsummer. It has dark green leaves along reddish stems, which form a vase-shaped clump when mature. 

Solidago nemoralis Solidago nemoralis
(Goldenrod, Gray goldenrod)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is one of the smallest species of goldenrod, topping out at only 4 to 6 inches high in poor soils, and 2 feet high in fertile soils. It is considered a garden-worthy species, with gray-green leaves that form clumps and languid, one-sided yellow plumes. It is tolerant of both sandy and clay soils.

Spiraea japonica 'Alpina’ Spiraea japonica 'Alpina’
(Japanese spirea)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This low-growing, clump-forming shrub has a spreading habit, reaching 10 inches tall. Slender branches spread across the ground. Foliage is light blue-green to 1 inch long. In late June, this plant bears clusters of pink flowers; bloom continues into September if deadheaded.

Sporobolus heterolepsis Sporobolus heterolepsis
(Prairie dropseed)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The finely textured, green leaves of this slow-growing, clump-forming perennial turn golden yellow in autumn. It bears cloudy panicles of fragrant, pale-pink to tawny flowers 5 to 10 inches long in late summer, reaching 3 feet tall.

Stachys byzantina and cvs. Stachys byzantina and cvs.
(Lamb's ears, Woolly betony)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This mat-forming perennial has rosettes of furry, silvery-gray leaves to 4 inches long. In summer, it bears gray spikes tipped with tiny, pink-purple or violet flowers. This plant crowds out weeds. 'Silver Carpet' is a non-flowering cultivar. 'Big Ears' has 8- to 12-inch-long, grayish-white felted, mid-green leaves.

Stephanandra incisa ‘Crispa’ Stephanandra incisa ‘Crispa’
(Cutleaf stephanandra, Lace shrub)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This decidous, thicket-forming shrub has attractive wavy-margined leaves that resemble maple leaves and have good orange-yellow fall color. Cutleaf stephanandra grows to less than 2 feet tall but spreads by suckering. Flowers are unremarkable at a distance, but attractive close-up. In winter, the rich brown, arching shoots draw the eye.

Symphoricarpos × chenaultii ‘Hancock’ Symphoricarpos × chenaultii ‘Hancock’
(Chenault coralberry, Snowberry)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Chenault coralberry is an undemand­ing workhorse. This 2-foot-tall shrub spreads about 10 feet without causing any trouble. It does an excellent job of covering ground and smothering weeds while elim­inating erosion. In late summer, small pink flowers appear and are followed by rosy red fruit.

no image available Symphytum 'Hidcote Blue'
(Hidcote comfrey)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This prolific cultivar has dark green foliage and bears nodding blue flowers from mauve buds. It grows to a compact height of 18 inches tall. It may become invasive and difficult to eradicate once established.

Symphytum × uplandicum 'Axminster Gold' Symphytum × uplandicum 'Axminster Gold'
(Russian comfrey)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This notably beautiful plant produces huge, elongated banana-shaped leaves, which are arfully edged in luminescent yellow. The rosette sits at 18 inches tall, and in early summer the plant bears clusters of mauve-pink bells atop stems that are 4 to 5 feet tall.

Teucrium chamaedrys Teucrium chamaedrys
(Wall germander)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This evergreen or deciduous subshrub is grown for its attractive, dark green aromatic foliage and its light pink to deep purple flowers, which blossom in summer and early fall. This garden workhorse can be used in troughs, containers, low hedges, knot gardens, rock gardens, or as edging.

no image available Teucrium chamaedrys var. compactum
(Wall germander)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This compact, evergreen subshrub has glossy, dark green leaves and grows to only 5 inches tall and 16 inches wide. It bears long-lasting, lavender flowers, and it is a great choice for low edging or for a rock garden. 

Thalictrum aquilegiifolium Thalictrum aquilegiifolium
(Columbine meadow rue)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The lacy leaves of this meadow rue look like a columbine's, hence the common and scientific names. But the leaves are actually gray-green and more delicate than its namesake. It bears clusters of long-lasting cottony flowers in shades of lilac, purple, or white in early summer. It is suitable for naturalizing in a meadow or woodland. These perennials grow to about 3 feet tall and half as wide.

Thalictrum isopyroides Thalictrum isopyroides
(Meadow rue)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species has exquisite tiny foliage that looks somewhat like parsley but with a steely blue cast. The leaves clothe stems that reach up to 18 inches in height. In early summer, it bears tiny greenish yellow flowers in starlike clusters. Plants grow to about 18 inches wide.

Thalictrum kiusianum Thalictrum kiusianum
(Dwarf meadow rue)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This garden gem forms a 6-inch-high mat of dainty, ferny foliage, and is perfect for a trough or a lightly shaded nook in a rock garden. In early summer, it produces a profusion of lavender blossoms which appear just above the leaves.

Thalictrum minus Thalictrum minus
(Meadow rue)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This perennial species is one of the most delicate of Thalictrums, with tiny foliage reminiscent of maidenhair ferns. It bears small, nodding, long-lasting flowers of a unique yellowish plum-brown. It grows to about 3 feet tall and wide.

Thymophylla tenuiloba Thymophylla tenuiloba
(Dahlberg daisy, Golden fleece, Shooting star)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This fragrant annual is covered with delicate, daisy-like yellow blossoms in July and August. It is best grown as a groundcover, between paving stones, or in a rock garden. It has needle-like, almost ferny leaves and grows to 1 foot tall and wide.

Thymus 'Pink Ripple' Thymus 'Pink Ripple'
(Thyme)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

In early- to mid-summer, this mat-forming thyme erupts with masses of 6-inch-high spikes covered with pink flowers. The light green, tiny foliage, hugging the ground in mats, has a pleasing lemon fragrance when crushed. This plant shines when spilling over stone walls or between the cracks in paving stones, where passersby can tread on the leaves and release the lemony scent.

Thymus × citriodorus 'Argenteus' Thymus × citriodorus 'Argenteus'
(Silver thyme, Lemon-scented thyme)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant is an elegant addition to an herb or ornamental garden. It has lemon-scented green leaves edged in silver and produces lilac flowers in early summer.

no image available Thymus polytrichus subsp. britannicus
(Mother of thyme, Thyme)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This thyme grows to 6 inches tall, with fuzzy stems and tiny, rounded, fuzzy blue-green leaves. In summer, it produces clusters of very small white to lilac-pink flowers. Plants spread to about 9 inches wide. The leaves are aromatic but the strength of their scent varies according to the plant's site and the time of year. 

Thymus pseudolanuginosus Thymus pseudolanuginosus
(Woolly thyme)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Woolly thyme—the wooliest of all thymes—forms a dense ground-covering mat of tiny, densely hairy leaves. The foliage has barely any fragrance and is unsuitable for culinary use. In summer, tiny pink tubular flowers appear. Plants grow to only one inch or so in height and spread to about a foot across.

Thymus serphyllum 'Annie Hall' Thymus serphyllum 'Annie Hall'
(Mother of thyme, Wild thyme, Serpolet)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Annie Hall' forms a prostrate mat with small, narrow leaves and is covered with pale purple-pink flowers in late spring. Plants can grow to 10 inches tall and 18 inches wide.

Thymus serpyllum 'Pink Chintz' Thymus serpyllum 'Pink Chintz'
(Mother of thyme, Wild thyme, Serpolet)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

One of the first thymes to flower each year, this charming and reliable cultivar bursts into bloom in early spring with unique salmon-pink flowers. Its fuzzy olive-green foliage forms a mat 1 to 2 inches tall and 18 inches wide. It is one of the most tolerant of thymes of dry conditions, but grows robustly with plenty of water.

Tiarella 'Black Snowflake' Tiarella 'Black Snowflake'
(Foam flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This clump-forming variety has very dramatic, deeply cut foliage with wide black veins that looks like a black snowflake when new. The dark color is more pronounced in cool weather. Plants produce a profusion of starry white flowers on numerous spires up to 12 inches high and grow to about a foot wide. Tiarellas are at home in moist woodland environments. In the garden they make wonderful carpets of intricate leaves. For a long period from spring into summer, the profusion of foamy flowers can be appreciated up close or from a distance. Grow 'Black Snowflake' as a groundcover or edger in a shady border or woodland garden. It is a great foil to early spring bulbs.

Tiarella 'Dark Eyes' Tiarella 'Dark Eyes'
(Foam flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This running cultivar has notably large light-pink flowers that appear in spring and then rebloom. It has a compact habit with maple-like leaves marked with burgundy centers. Foliage turns bronze in the fall. Plants grow to about 14 inches tall and slightly wider.

Tiarella 'Heronswood Mist' Tiarella 'Heronswood Mist'
(Foam flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The leaves of this clump-forming variety look as if they have been dusted by a fine mist of pink, cream, and green. It is a rebloomer, and in spring it  produces a profusion of fragrant light pink flowers on spires that can reach 15 inches, rising above the foliage which grows to about 6 inches tall and wide.

Tiarella 'Mint Chocolate' Tiarella 'Mint Chocolate'
(Foam flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This clump-forming variety has unusually long, maple-shaped leaves with a chocolate-colored overlay. It is topped in spring by 16-inch spires of pink buds which yield to wispy, starlike ivory flowers. Plants rebloom lightly, so they can flower from spring to mid-summer. 'Mint Chocolate' grows to about 16 inches tall and a foot wide.

Tiarella 'Neon Lights' Tiarella 'Neon Lights'
(Foam flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This clump-forming variety has exquisitely textured, bright green maple-like leaves emblazoned with chocolate centers. In spring, its large pink-kissed-white flowers rebloom lightly on 16-inch stalks. Leaf coloration is best in cool weather. Plants grow to about a foot wide.

Tiarella 'Spring Symphony' Tiarella 'Spring Symphony'
(Foam flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This reblooming, clump-forming variety blooms in spring, producing 15-inch spires densely packed with pink blossoms. Its deeply cut foliage is compact, with black markings along the midrib. Plants grow to about 10 inches tall and wide. 

Tiarella 'Starfish' Tiarella 'Starfish'
(Foam flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A good choice for winter color, this clump-forming variety is often grown for its long lasting, pink-budded white flowers that appear in late spring on 12-inch spires. Its star-shaped leaves are marked with burgundy and, in mild climates, turn bronze in winter. Plants grow to about 1 foot tall and wide.

Tiarella cordifolia Tiarella cordifolia
(Eastern foam flower)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This native North American species has pale green heart-shaped leaves which develop bronze highlights in the autumn. In summer, it produces a profusion of starry white flowers on 4- to 12-inch spikes. It self-sows freely.

no image available Tiarella wherryi 'Oakleaf'
(Foam flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This cultivar of the North American species has reddish, deeply lobed, oak-like leaves that mature to dark green with burgundy splashes. From late spring to early summer it produces a profusion of starry pink flowers for up to 8 weeks. Plants grow to about 18 inches tall and wide.

Tricyrtis 'Tojen' Tricyrtis 'Tojen'
(Toad lily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This luminous hybrid bears unspotted, orchid-like lavender flowers with yellow-throated bases. It has unusually large and clean leaves, which look great all season. It grows up to 3 feet tall, although its lovely, almost weeping, habit keeps the plant's height closer to 2 or 2.5 feet. It grows to about 3 feet wide. Toad lilies make subtle but exotic specimens for woodland borders and other shady sites.

Tricyrtis formosana Tricyrtis formosana
(Toad lily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The upward-facing, star-like blossoms of this species vary from white to light pink or lilac, with reddish purple spots throughout. They are reminiscent of orchids. Toad lily blooms in early autumn along arching stems to 2 or 3 feet tall. Plants grow to 2 feet wide. They make subtle, but exotic specimens for woodland borders and shady house plantings. They will colonize over time, but are not invasive. These perennials are from moist woodlands and high elevations from eastern Asia to the Phillipines.

no image available Tricyrtis formosana ‘Amethystina’
(Toad lily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Amethystina's upward-facing, star-like blossoms are bluish-lavender with purple spots and creamy bases. It blooms in early autumn along arching stems up to 3 feet tall and grows half as wide. Toad lilies make subtle but exotic specimens for woodland borders and other shady gardens.

Tricyrtis hirta Tricyrtis hirta
(Toad lily)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The star-like blossoms of this species are white with rich purple spots and purple stigmas. It blooms in late summer to mid-autumn along arching stems up to 2.5 feet tall. 

no image available Trillium chloropetalum
(Giant trillium, Wakerobin, Wood lily, Trinity flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species blooms in early to mid-spring with large blossoms of white, yellow, or deep purple-black. It is vigorous, growing to almost 18 inches tall and wide, with leaves (usually mottled) up to 8 inches long.

Trillium erectum Trillium erectum
(Red trillium, Purple trillium, Stinking Benjamin, Woodlily, Wakerobin, Trinity flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This trillium has upright or outward-facing blossoms of chocolate or reddish-purple, or occasionally white or yellow. At close range, it bears an unpleasant scent. It blooms in mid- to late spring, and grows from 14-20 inches tall and a foot wide.

Trillium erectum var. album Trillium erectum var. album
(White trillium, Stinking Benjamin, Wood lily, Wakerobin)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This white-flowered form of red trillium has delicate, outward-facing petals with striking dark centers. At close range, it bears an unpleasant scent. Plants bloom in mid- to late spring, and grow to 14-20 inches tall and a foot wide.

Trillium flexipes Trillium flexipes
(Bent trillium, White wakerobin, Wood lily, Trinity flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This trillium produces large white flowers above the foliage in mid-spring, but the flowers are later hidden as the flower stalks nod. The flowers occasionally are maroon, but they retain the white ovaries. The plant is quite variable, and can grow up to 2 feet tall.

Trillium grandiflorum Trillium grandiflorum
(Great white trillium, White wakerobin, Wood lily, Trinity flower)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This showy spring-blooming trillium has large white blossoms up to 3 inches long, which fade to soft pink and from cup-shaped to open and recurved. Its veined leaves are solid green, and it grows to 18 inches tall and about half as wide.

Trillium luteum Trillium luteum
(Yellow trillium, Wood lily, Wakerobin, Trinity flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This mid- to late-spring bloomer bears yellow blossoms atop a trio of leaves often mottled with a paler shade of silvery-green. It is faintly fragrant of lemon oil, and grows to about 14 inches tall.

Trillium pusillum Trillium pusillum
(Dwarf wakerobin, Wood lily, Trinity flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

In spring, the foliage of this petite species emerges a deep purple-black-green and is topped by white blooms with rippled petals. As plants mature, the foliage becomes medium green, and the flowers turn pink, then lavender-purple. Dwarf wakerobin grows to only 8 inches tall and readily forms colonies. 

Trillium recurvatum Trillium recurvatum
(Prairie trillium, Bloody butcher, Purple wakerobin, Wood lily, Trinity flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is one of the first and most plentiful Trilliums to bloom in the spring. It has upright maroon blossoms (occasionally white or yellow) without stalks, and its leaves can be nicely mottled. It grows to 12-18 inches tall and 8-12 inches wide.

no image available Trillium stamineum
(Propeller toad shade, Wakerobin, Wood lily, Trinity flower, Propeller trillium, Blue Ridge wakerobin)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This striking spring-blooming species features narrow, chocolate-colored petals that twist like a propeller over slightly mottled leaves. It forms a stocky plant, growing to 10-15 inches tall and not quite as wide.

Trillium vaseyi Trillium vaseyi
(Sweet Beth, Sweet wakerobin, Wood lily, Trinity flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This trillium bears the largest flowers in the genus—almost 4 inches across. Growing to almost 2 feet high and not quite as wide, it is also one of the tallest trilliums. Its chocolate-red blossoms (occasionally white) boast strongly curved petals and prominent stamens. They appear just beneath the leaves in mid- to late spring.

no image available Tropaeolum majus 'Alaska Mix'
(Indian cress, Nasturtium)
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This old-fashioned cultivar of the species has a mounding habit and grows 10-12 inches tall. In summer and early fall, it bears deep red and orange blossoms, which are offset by rounded leaves with white variegation. The leaves and flowers are edible. 

Tropaeolum majus 'Dwarf Cherry Rose' Tropaeolum majus 'Dwarf Cherry Rose'
(Indian cress, Nasturtium)
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This old-fashioned cultivar of the species has a mounding habit and grows 12 inches tall and about as wide. In summer and fall, it bears cherry-red flowers. These annuals are native to South America. They are suitable for garden edges, herb gardens, covering banks, hanging baskets, and other containers.

Tropaeolum majus 'Empress of India' Tropaeolum majus 'Empress of India'
(Indian cress, Nasturtium)
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This old-fashioned cultivar has a mounding habit and grows to a foot tall and wide. In summer and fall, it bears double, deep scarlet flowers. The rounded leaves and five-petaled flowers are edible.

Tropaeolum majus 'Jewel of Africa' Tropaeolum majus 'Jewel of Africa'
(Indian cress, Nasturtium)
(2 user reviews)

This climbing, old-fashioned cultivar grows to 8 feet tall. In summer and fall, it bears flowers of maroon, yellow, cream, and orange, and in-between shades of peach, apricot, salmon, and scarlet. The leaves are marbled with white variegation. The leaves and flowers are edible.

Tropaeolum majus 'Mahogany Jewel' Tropaeolum majus 'Mahogany Jewel'
(Indian cress, Nasturtium)
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This old-fashioned cultivar of the species has a mounding habit and grows 12-18 inches tall and wide. In summer and fall, it bears mahogany red, single to semi-double flowers. The rounded leaves and spurred, five-petaled flowers are edible.

Tropaeolum majus 'Milk Maid' Tropaeolum majus 'Milk Maid'
(Indian cress, Nasturtium)
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This old-fashioned cultivar of the species has a mounding habit and grows to 12 inches tall and wide. In summer and fall, it bears pale yellow blossoms. The rounded leaves and spurred, five-petaled flowers are edible.

no image available Tropaeolum majus 'Peach Melba'
(Indian cress, Nasturtium)
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This old-fashioned cultivar of the species has a mounding habit and grows 9-12 inches tall and wide. In summer and fall it bears creamy-yellow blossoms with orange blotches. The rounded leaves and spurred, five-petaled flowers are edible.

Tropaeolum majus 'Strawberries and Cream' Tropaeolum majus 'Strawberries and Cream'
(Indian cress, Nasturtium)
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This old-fashioned cultivar of the species has a mounding habit and grows to 12 inches tall and wide. In summer and fall, it bears creamy-yellow blossoms with red blotches. Both the rounded leaves and spurred, five-petaled flowers are edible.

Tropaeolum majus 'Vanilla Berry' Tropaeolum majus 'Vanilla Berry'
(Indian cress, Nasturtium)
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This cultivar of the old-fashioned species has a mounding habit and grows to 12 inches tall. It bears cream blossoms with strawberry blotches. 

Tropaeolum majus 'Vesuvius' Tropaeolum majus 'Vesuvius'
(Indian cress, Nasturtium)
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This old-fashioned cultivar has a mounded habit and grows to 12 inches tall and about as wide. In summer and fall, it bears blossoms of tangerine to deep salmon. Both the rounded leaves and spurred flowers are edible.

Tropaeolum majus 'Whirlybird Mix' Tropaeolum majus 'Whirlybird Mix'
(Indian cress, Nasturtium)
(1 user review)

This old-fashioned cultivar of the species has a mounding habit and grows up to 18 inches tall and a foot wide. From summer to frost, it bears blossoms in shades of yellow, red, and orange which are held clear above the foliage.

no image available Tropaeolum peregrinum
(Canary creeper)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This annual or perennial climber grows vigorously, yet does not strangle its host. Its edible leaves are deeply divided like the fingers of a hand, and its bright yellow flowers are outrageously formed: The larger, upper petals are deeply fringed and look like tiny birds' wings; the smaller, lower petals are spurred. It blooms in summer and autumn and can climb up to 12 feet.

no image available Tropaeolum speciosum
(Flame nasturtium, Scottish flame flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This tender perennial climber has edible, hand-shaped leaves and crimson red flowers in summer and fall which are uniquely textured. Their softly squared petals are held apart from each other at the flower's mouth and the rear tapers to long spurs. The blooms yield blue fruits. Flame nasturtium climbs up to 10 feet.

no image available Tulipa batalinii 'Bright Gem'
(Tulip)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This named variety of the species has soft sulfur-yellow flowers up to 3 inches across. The spring blossoms sit 4-6 inches high, surrounded by wavy-edged, gray-green foliage that reaches 8-10 inches tall. Species tulips prefer sharp drainage and plenty of room to grow. Most do well in rock gardens, small displays, and containers.

no image available Tulipa linifolia
(Tulip)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species tulip blooms in mid- to late spring with fire-engine-red flowers that look like open, pointed stars with purple centers. It reaches 4-6 inches tall and not quite as wide. Species tulips prefer sharp drainage and plenty of room to grow; they will often naturalize. Most do well in rock gardens, small displays, and containers.


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