White Foxglove (Digitalis purpurea 'Alba'). Hardy biennialDescription: White, tubular flowers with small purple spots bloom in late spring to early summer. Habit: Flower stalks grow 4 to 6 feet and broad basal leaves spread 18 to 24 inchesCulture: Prefers sun to part shade and well-prepared garden loam and even moistureHardiness: USDA Zones 4 through 8Origin: EuropeAttributes: Deer resistant, attracts beesBoth white and purple Foxgloves were grown in American gardens by 1735, and likely became more common after their medicinal... - White Foxglove (Digitalis purpurea 'Alba').
Purple Foxglove (Digitalis purpurea). Hardy biennial with spikes of tubular purple flowers Description: Spotted dark purple on the inside; flowers in late spring to early summer Habit: Flower stalks grow to 3-5 feet high; broad basal leaves spread 18 to 24 inches Culture: Prefers full s... - Purple Foxglove (Digitalis purpurea).
Rusty Foxglove (Digitalis ferruginea). Summer-flowering perennial Description: Showy golden yellow-brown flowers with unusual rusty brown spotting and veining on the inside of the petals Habit: Flower stems grow to 5 feet high and 18 inches wide above its evergreen mound of dark green&com... - Rusty Foxglove (Digitalis ferruginea).
Small Yellow Foxglove (Digitalis lutea). Late-spring flowering perennialDescription: Tall, slender flower stems bear many charming, pale yellow, one-inch long flowersHabit: Flower stalks grow 2 to 3 feet tall above a basal mound of evergreen, strap-like, pale g... - Small Yellow Foxglove (Digitalis lutea).
White Bleeding Heart (Dicentra spectabilis 'Alba'). Hardy, deciduous late-spring blooming perennial Description: Heart-shaped pure white flowers hang loosely from gracefully arching stems Habit: Grows in clumps 2 to 4 feet high Culture: Prefers partial shade and rich, evenly moist soil.... - White Bleeding Heart (Dicentra spectabilis 'Alba').
White Roof Iris (Iris tectorum 'Alba'). Hardy, late spring-flowering, evergreen perennial Description: Ruffled, orchid-like crested iris has white petals with yellow veins on the crests and falls; flower stalks form amid or slightly above the sword-like leaves. Habit: F... - White Roof Iris (Iris tectorum 'Alba').
Purple Coneflower (Echinacea purpurea). Summer-blooming, herbaceous perennialDescription: Showy, deep-pink, daisy-like flowers on tall stems above a thick clump of deep green foliage Habit: Grows 3 to 4 feet in height by 2 to 3 feet wide Culture: Prefers full sun to ligh... - Purple Coneflower (Echinacea purpurea).