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This compact species forms broad mats of blue-gray linear leaves and is perfect for a rock garden setting. The purplish-pink flowers are solitary, toothed, and deliciously fragrant. 

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.

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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.

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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.

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.

(5 user reviews)

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. 

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.

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.

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.

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.

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.

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.  

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.

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.

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.

'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.

This outstanding hybrid blooms from spring until frost and has beautifully dissected foliage. Innumerable clusters of purple blossoms cover this plant and look fantastic cascading over the edges of a hanging basket. Verbenas are excellent for annual borders, containers—especially hanging baskets—and for the mixed herbaceous border.

A hardworking, compact perennial, ‘Etain’ violet forms well-behaved clumps and blooms from time to time from spring through fall. The attractive, fleshy, bright green foliage needs protection from slugs. -Sylvia Matlock, Regional Picks: Northwest, Fine Gardening issue #127