Garden Sage (Salvia officinalis). Hardy, semi-evergreen, perennial herbDescription: Spikes of pale lavender flowers are borne over the soft green foliage Habit: Grows to 2.5 feet tall and wide Culture: Prefers full sun and ordinary, well-drained soil; tolerates d... - Garden Sage (Salvia officinalis).
Garden Thyme (Thymus vulgaris). Hardy evergreen, low growing herb Description: Bright purple to white flowers, borne in the leaf axils; cover the plant in late spring; aromatic foliage Habit: Spreading, mat-forming plant grows to 1 foot high and 3 feet or more w... - Garden Thyme (Thymus vulgaris).
Globe Artichoke (Cynara cardunculus var. scolymus). Perennial kitchen garden vegetableDescription: Large, silvery green, deeply lobed, pointed leaves form a mound from which the flower stems arise; large, purplish, thistle-like flowers sit atop stems up to 6 feet tall; fl... - Globe Artichoke (Cynara cardunculus var. scolymus).
Golden Seal (Hydrastis canadensis). Hardy, North American herbaceous perennial Description: Small, greenish-white flowers in spring followed by red raspberry-like fruit; palmately lobed leaves; thick, knotty yellow roots Habit: Grows to 12 inches high and 8 to 12 in... - Golden Seal (Hydrastis canadensis).
Great Blue Lobelia (Lobelia siphilitica). Hardy, North American herbaceous perennial Description: Bright blue flowers in dense clusters, mid to late summer Habit: Flower spikes grow 2-3 feet high Culture: Prefers full sun to part shade and humus rich, moist garden loam; ... - Great Blue Lobelia (Lobelia siphilitica).
Great Red Hibiscus (Hibiscus coccineus). Hardy, herbaceous North American perennial Description: Large, bright scarlet blossoms open from upper branches in late summer; leaves turn orange and yellow in fall Habit: Grows to 7 feet high and 4 feet wide; multi-stemmed Culture: Pre... - Great Red Hibiscus (Hibiscus coccineus).
Greek Oregano (Origanum vulgare subsp. hirtum). Description: Hardy, perennial herb - Aromatic, dark green leaves are grown for culinary purposes. Cream-colored flowers are borne in July to September. Habit: Grows 6-18" high; spreading Culture: Prefers full sun and well-drained soil Har... - Greek Oregano (Origanum vulgare subsp. hirtum).
Green Ischia Fig (Ficus carica cv.). Description: Half-hardy, deciduous shrub produces medium-sized, dry but rich-tasting fruits with a yellowish-green skin and strawberry-colored pulp Habit: Grows 12-15 feet high, spreads to 8 feet Culture: Prefers full sun and wel... - Green Ischia Fig (Ficus carica cv.).
Green-and-Gold (Chrysogonum virginianum). Hardy, North American perennial Description: Bright yellow daisy-like flowers from late spring to early fall Habit: Reaches 6 to 12 inches high and wide Culture: Prefers partial or full shade and ordinary or moist garden soil Hardiness: Col... - Green-and-Gold (Chrysogonum virginianum).
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).