Guinea Hen Flower; Checkered Lily (Fritillaria meleagris). Mid-late spring-flowering bulb Description: Charming purple, rose, and white flowers with checkered patterns; flowers nodding and bell-shaped; thin, pale green foliage Habit: Flowering stalks 12-15 inches high Culture: Prefers li... - Guinea Hen Flower; Checkered Lily (Fritillaria meleagris).
Halberd-leaved Rose Mallow (Hibiscus laevis). Herbaceous, North American perennial Description: Large, light pink, hollyhock-like flowers with rose-colored centers; blooms in mid- to late-summer Habit: Grows 5-7 feet high and 4-5 feet wide; upright habit Culture: Prefers full s... - Halberd-leaved Rose Mallow (Hibiscus laevis).
Harlequin Blue Flag (Iris versicolor). Hardy, North American, spring-blooming perennialDescription: Showy, bluish-purple, wide-spreading flowers in branched clusters of two or three; falls are often blotched in yellow or purple-veinedHabit: Forms vigorous clumps of... - Harlequin Blue Flag (Iris versicolor).
Heartleaf Bergenia; Pigsqueak (Bergenia cordifolia). Hardy, spring-blooming perennial groundcover Description: Dense clusters of rose-pink flowers above thick rosettes of heart-shaped, glossy, leathery leaves that turn shades of red and purple in fall and winter; evergreen in warmer c... - Heartleaf Bergenia; Pigsqueak (Bergenia cordifolia).
Heartleaf Foamflower (Tiarella cordifolia). Hardy North American perennial Description: Creamy white spikes of tiny flowers cover the plant in spring on stalks to 12 inches; 3-5 lobed, soft olive green foliage often persists through winter Habit: Forms a mound 6 to 12 inches high and 12 ... - Heartleaf Foamflower (Tiarella cordifolia).
Hyssop (Hyssopus officinalis). Hardy, semi-evergreen, perennial subshrubDescription: Summer-blooming subshrub (short woody plant) with spikes of small, violet-blue flowersHabit: Grows to 18 to 24 inches tall and 24 to 30 inches wideCulture: Prefers full sun and w... - Hyssop (Hyssopus officinalis).
Indian Chief Iris (Iris x germanica cv.). Hardy, spring-flowering rhizomatous perennialDescription: Lovely maroon bitone iris with lighter maroon standards and darker, velvety maroon falls; orange to deep yellow beardsHabit: Erect, clump forming plants grow 2-4 feet high ... - Indian Chief Iris (Iris x germanica cv.).
Indian Physic (Gillenia trifoliata). Hardy, North American perennial Description: White, star-like flowers, borne in late spring with reddish stems and handsome, Astilbe-like leaves that turn shades of red in the fall Habit: Grows 2-3 feet high and 3 feet wide Cu... - Indian Physic (Gillenia trifoliata).
Indian Pink (Spigelia marilandica). Hardy, late spring to summer-blooming, native perennialDescription: Unusual flowers very attractive to hummingbirds begin as bright red, elongated buds that peel back at the tips to reveal soft yellow interiors; glossy green, ... - Indian Pink (Spigelia marilandica).
Jack in the Pulpit (Arisaema triphyllum). Hardy, herbaceous, spring-flowering North American perennial Description: Irregular shaped flower consists of a showy spathe (?"pulpit?"), which is green with deep purple or brownish stripes; and a club-like spadix (?"jack?") covere... - Jack in the Pulpit (Arisaema triphyllum).
Jan Bos Hyacinth (Hyacinthus orientalis cv.). Early to mid-spring-flowering, hardy, pest-resistant bulbDescription: Large, single-flowered, highly-scented flowers in pinkish-red with a white blushHabit: Flower height of 8 to 12 inchesCulture: Plant bulbs 5 to 6 inches dee... - Jan Bos Hyacinth (Hyacinthus orientalis cv.).
Japanese Anemone (Anemone hupehensis). Hardy, late summer to fall-blooming perennialDescription: Pale rose to mauve, 5-petaled, slightly cup-shaped flowers with distinctive yellow stamens rise on long, narrow, branching stems above basal growth of dark green ... - Japanese Anemone (Anemone hupehensis).
Juneberry (Amelanchier canadensis). Deciduous, early spring-flowering, North American treeDescription: Delicate white flowers appear as the leaves emerge, giving the plant a light, airy appearance; edible, maroon-purple fruit form in early summer; finely t... - Juneberry (Amelanchier canadensis).
Karl Rosenfield Peony (Paeonia lactiflora cv.). Herbaceous, spring flowering perennialDescription:Large, fully double, globe-shaped, crimson flowers, mid- to late-season Habit: Grows to 3 feet high and wide; medium height stems and medium green foliage Culture: Prefer... - Karl Rosenfield Peony (Paeonia lactiflora cv.).
Kentucky Coffeetree (Gymnocladus dioica). Large, deciduous North American treeDescription: Fine-textured, bluish-green leaves and grayish to dark brown bark with unique, deeply grooved bark pattern; female trees bear large, reddish brown, leathery seed pods&comm... - Kentucky Coffeetree (Gymnocladus dioica).
Lady Fern (Athyrium filix-femina). Hardy, North American perennialDescription: Delicate, fine-textured, light green frondsHabit: Grows 1-3 feet high and wide, clump forming, spreading by underground running rootsCulture: Prefers partial to full shade a... - Lady Fern (Athyrium filix-femina).
Lady Tulip (Tulipa clusiana). Hardy, mid-spring flowering bulb Description: Small, ivory white petals with a pink, central stripe, suggestive of peppermint sticks Habit: 6 to 12 inches high Culture: Plant bulbs 3 to 4 inches deep in a sunny, well-... - Lady Tulip (Tulipa clusiana).