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Narrowed By:Type: Perennials+ Zone: 6
Displaying 401 - 420 of 609 listings   < Prev1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31View AllNext > Sort By: Sort
Lobelia siphilitica Lobelia siphilitica
(Blue cardinal flower, Great blue lobelia)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This clump-forming perennial has upright leafy stems. From late summer to mid-autumn, it bears dense spikes of light to bright blue tubular, two-lipped flowers with a more prominent lower lip.

Lunaria annua Lunaria annua
(Money plant, Honesty, Silver dollars)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Showy sprays of pretty purple or white flowers in spring are followed by papery, flat seedpods that look like silver dollars. Flowers may attract butterflies.

Lupinus Russell Hybrids Lupinus Russell Hybrids
(Russell lupine)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Russell hybrid lupines are widely available and available in myriad colors. They produce spikes of pea-like flowers in early and midsummer on 30-36-inch plants.

no image available Luzula nivea
(Snowy woodrush)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This spreading evergreen perennial has clumps of grass-like deep green basal leaves. Tiny, brilliant white flowers borne in tight clusters appear in early summer and midsummer.

Lychnis coronaria and cvs. Lychnis coronaria and cvs.
(Rose campion, Crown pink, Mullein pink, Dusty miller)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Gray-green, spear-shaped leaves form a low, tidy, circular mound about 1 foot in diameter. This plant puts on a dazzling show of five-petaled magenta flowers on straight stalks about 2 feet high in mid-spring. 

no image available Lysichiton camtschatcensis
(White skunk cabbage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

In early spring, this plant produces 16-inch-long, pointed white spathes that mask spikes of tiny green flowers, with no offensive odor. Large, glossy, leathery, oblong leaves 20 to 39 inches long grow from the base of the spathes.

Lysimachia ciliata 'Firecracker' Lysimachia ciliata 'Firecracker'
(Hairy loosestrife)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Hairy loosestrife has dark burgundy- to chocolate-colored foliage that spreads to form large clumps but is generally not invasive. In midsummer, clusters of small yellow star-shaped flowers contrast with the leaves. It grows to 4 feet high and 2 feet wide and is good in a moist border, at a pond margin, or in a wild garden.

Lysimachia clethroides Lysimachia clethroides
(Gooseneck loosestrife)
(4 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This vigorous grower has attractive, smooth, narrowly oval pointed leaves are mid-green above, pale green beneath. Tiny saucer-shaped white blossoms are produced in dense, tapered terminal spikes, 4 to 8 inches long, that curve gracefully over and down, from July to September. Leaves turn to rich gold in autumn.

Lysimachia congestiflora 'Persian Chocolate' Lysimachia congestiflora 'Persian Chocolate'
('Persian Chocolate' moneywort)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A mass of small purple leaves and abundant golden yellow, bell-shaped flowers distinguish this groundcover. It is useful on slopes as well as in containers.

Lysimachia nummularia

Lysimachia nummularia


(Creeping Jenny, Moneywort)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Creeping Jenny is a  low-growing, rampant, evergreen groundcover with rounded leaves. In summer, it produces many cup-shaped, bright yellow flowers.

Lysimachia nummularia ‘Aurea’ Lysimachia nummularia ‘Aurea’
(Golden creeping Jenny, Moneywort)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Golden creeping Jenny is a  low-growing, rampant, evergreen groundcover with rounded, golden yellow leaves. In summer, it produces many cup-shaped, bright yellow flowers.

Lythrum salicaria Lythrum salicaria
(Purple loosestrife)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The showy purple spikes of purple loosestrife are attractive in the garden and along roadsides, but the plant's rampant spread has greatly reduced the ecological value of marshes by displacing native wetland vegetation such as cattails (Typha spp.) that wildlife uses as food or shelter. One mature plant can produce over 2 million seeds a year that are easily transported by the wind or water into wetlands. The seeds easily germinate, and no natural predator holds this plant in check. Even cultivars reported to be sterile can produce highly fertile seed if grown with other cultivars or wild loosestrife.

Marrubium incanum Marrubium incanum
(Horehound)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Horehound is a spreading perennial with scalloped, toothed, gray-green leaves, white-felted beneath, to 2 inches long. Small tubular flowers open in whorls in late spring, varying from tepid gray and pale lilac to greenish white.

Mazus reptans Mazus reptans
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Mazus reptans is a mat-forming perennial with rosettes of lance-shaped toothed leaves. It spreads quickly through rooting stems. From late spring to mid-summer, it bears 2- to 5-flowered racemes of snapdragon-like purple-blue flowers with lower lips spotted with yellow and red.

Melampodium leucanthum Melampodium leucanthum
(Blackfoot daisy)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A native perennial shrub that grows to about 2 feet tall and wide and covers itself the whole season with honey-scented, white and yellow daisy flowers. The foliage is typical of the aster family. Plant en masse in a well-drained border or use in a rock garden. Blackfoot daisy can be short-lived.

Mertensia pulmonarioides Mertensia pulmonarioides
(Virginia bluebells, Virginia cowslip)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This clump-forming perennial has light blue to purplish blue pendulous flowers that open from pink buds atop 16- to 24-inch stems in mid- to late spring. Elliptic to ovate, hairless, bluish green leaves yellow and die back once the flowers fade after about 10 days.

Monarda didyma Monarda didyma
(Bee balm, Bergamot, Oswego tea)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Bee balm, a clump-forming perennial, bears minty-scented scarlet, pink, or purple flowers in midsummer on branching, square stems. Leaves are aromatic as well. This native of eastern North America attracts hummingbirds and butterflies.

Myosotis sylvatica Myosotis sylvatica
(Forget-me-not)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This short-lived perennial or biennial has ovate to lance-shaped, velvety gray-green leaves to 4.5 inches long. Myriad saucer-shaped blue or white flowers with yellow eyes are borne in clusters from spring to early summer.

Myrrhis odorata Myrrhis odorata
(Sweet cicely)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This elegant fern-like herb has a mounding form and anise-flavored bright-green leaves. In late spring, it bears compound umbels of star-shaped white flowers, followed by shiny, ridged brown seeds.

Nepeta × faassenii 'Walker's Low' Nepeta × faassenii 'Walker's Low'
(Catmint)
(11 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This mound of lavender-blue flowers and aromatic, grayish green leaves up to 2 feet tall and 3 feet wide is great as edging or in a border, herb, or rock garden. It is an easy to grow, prolific bloomer that seems to be deer resistant. It blooms the whole summer and tolerates some shade. It also looks great with roses or on walls.


Displaying 401 - 420 of 609 listings   < Prev1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31View AllNext > Sort By: Sort