Pennsylvania Sedge; Oak Sedge (Carex pensylvanica). Hardy, eastern North American perennial sedgeDescription: Fountain-shaped mounds of narrow, shiny, bright green foliage; white and purple inflorescences emerge in mid-late spring; typically semi-evergreenHabit: Grows 6-10" high and ... - Pennsylvania Sedge; Oak Sedge (Carex pensylvanica).
Persian Fritillary (Fritillaria persica). Hardy, spring-flowering bulb Description: Showy, bell-shaped, dusky purple flowers in early spring Habit: Flower spikes up to three feet; glossy, blue-green foliage Culture: Plant in a sunny, well-drained site, ... - Persian Fritillary (Fritillaria persica).
Pheasant's Eye Daffodil (Narcissus poeticus recurvus). Hardy, late-spring flowering bulb Description: Pure white petals recurving from a small, red-rimmed cup Habit: 10-13 inches high Culture: Prefers a sunny to lightly shaded site, well drained, but with even moisture; plant b... - Pheasant's Eye Daffodil (Narcissus poeticus recurvus).
Pink Flowering Dogwood (Cornus florida rubra). Small, deciduous North American treeDescription: Showy light pink flowers give a magnificent display for several weeks in mid springHabit: Reaches 20 to 30 feet high and wideCulture: Prefers sun to part shade and average soilsHardiness: USD... - Pink Flowering Dogwood (Cornus florida rubra).
Pompon de Bourgogne Rose (Rosa centifolia var. parviflora). Hardy, spring-flowering shrubDescription: Double, rosy-claret to purple flowers, sometimes flecked with pink. Fragrant blossoms are produced abundantly. Habit: Low-growing, suckering shrub with upright shoots, 2' feet ... - Pompon de Bourgogne Rose (Rosa centifolia var. parviflora).
Possum Haw (Viburnum nudum). Deciduous, North American shrub Description: Bears long-stalked clusters of yellowish-white flowers in late spring; followed by blue-black fruits; glossy-green foliage colors red to reddish-purple in fall Habit: Medium-sized, upright sh... - Possum Haw (Viburnum nudum).
Prairie Rose (Rosa setigera). Hardy, North American, early summer-flowering shrub roseDescription: Clusters of single, mildly-fragrant, rose-pink flowers that fade to pale pink and white; showy boss of yellow stamens are attractive to pollinators; light g... - Prairie Rose (Rosa setigera).
Pride of Washington Rose (Rosa setigera cv.). Hardy, late spring-flowering, climbing roseDescription: Medium-sized, double rose-pink flowers age to lilac; petals are cupped; bears clusters of 10-20 flowers. Habit: Vigorous, cold tolerant, climbing shrub grows 6-12... - Pride of Washington Rose (Rosa setigera cv.).
Princess of Nassau Rose (Rosa moschata x noisettiana hybrid). Hardy, repeat-flowering, shrub or climbing roseDescription: Small to medium-sized, fully double, light yellow flowers age to white; highly fragrant. Habit: Vigorous climbing shrub grows 8-10'?' high and 6'?' wide; can be gro... - Princess of Nassau Rose (Rosa moschata x noisettiana hybrid).
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).
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).
Red Buckeye (Aesculus pavia). Hardy, deciduous, Eastern North American tree Description: Panicles of bright red flowers in late spring, followed by smooth, rounded fruits in the fall; handsome, lustrous dark green foliage. Habit: Clump forming&comm... - Red Buckeye (Aesculus pavia).
Red Chokeberry (Aronia arbutifolia). Deciduous, late spring flowering North American shrub Description: Bears clusters of white blossoms followed by showy, deep red berries that persist through winter; bright red fall color Habit: Grows to 10 feet high and 5 feet wide; uprig... - Red Chokeberry (Aronia arbutifolia).
Red Crown Imperial Lily (Fritillaria imperialis 'Rubra Maxima'). Hardy, spring-flowering bulb Description: Large, dramatic, bell-shaped, deep orange-scarlet flowers; whorls of lance-shaped, light green leaves Habit: Flowering stalk to 3 feet Culture: Prefers full sun and well-drain... - Red Crown Imperial Lily (Fritillaria imperialis 'Rubra Maxima').
Red-osier Dogwood (Cornus sericea). Deciduous, Eastern North American shrub Description: White flowers in late spring followed by white fruit, which is slightly tinged bluish; bright crimson stems add winter interest Habit: Grows 6 to 9 ft. high, forms a thicket wit... - Red-osier Dogwood (Cornus sericea).
Redoute Red Rose (Rosa cv. Noisette hybrid). Hardy, deciduous, flowering shrubDescription: Bright rose-pink, semi-double flowers that deepen as the flower ages, late spring through the growing season; deep green foliage tinged red. Habit: Dense multi-stemmed shrub grow... - Redoute Red Rose (Rosa cv. Noisette hybrid).
River Birch (Betula nigra). Medium, deciduous, North American treeDescription: Exfoliating reddish-brown bark that reveals smooth, pale inner bark; green female and brown male catkins in spring; 2-3" glossy green leaves turn yellow in fallHabit: Grows up to 70... - River Birch (Betula nigra).