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Browse Plants

Narrowed By:Zone: 6+ Seasonal Interest: Summer+ Botanical Name: P - R
Displaying 1 - 20 of 153 listings   1 | 2 | 3 | 4 | 5 | 6 | 7 | 8View AllNext > Sort By: Sort
Pachysandra procumbens Pachysandra procumbens
(Allegheny spurge)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This clump-forming, semi-evergreen perennial has long prostrate stems and pewter-green foliage. Fragrant, bottlebrush-like white flowers are borne on 2- to 4-inch-long spikes in spring, as the foliage appears.

Paeonia lactiflora Paeonia lactiflora
(Common garden peony)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This stunning herbaceous woodland peony has upright red-mottled stems and dark green leaves that are elliptic or lance-shaped with rough margins. It bears usually solitary, single creamy white to pale pink blossoms that are cup-shaped and elegant. The blooms measure 3 to 4 inches across and have pale yellow stamens. Like all peonies, the flowers are with us for too short a time. They are followed by beautiful seedpods.

no image available Paeonia obovata var. alba
(Japanese forest peony)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant is a beautiful addition to the garden from early spring until autumn. Red shoots with a crystalline dusting emerge in early April, followed by 5-inch-long, egg-shaped leaves that mature to a dark, reddish green. Each 18-inch stem bears a 2-inch-wide, chalice-like, single pure-white flower with yellow anthers and purple filaments. Mature seedpods open to reveal metallic-blue pea-sized fertile seeds and holly-berry red unfertilized seeds.

Paeonia suffruticosa Paeonia suffruticosa
(Tree peony)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This upright, sparsely branched, woody shrub reaches 4 to 10 feet tall. It's easy to grow but slow-growing. It displays dark green leaves that are blue-green beneath, and large, silken blossoms 6 to 12 inches across in late spring and early summer. The plants maintain a graceful branching structure throughout the winter.

no image available Panicum amarum 'Dewey Blue'
(Bitter switchgrass, Switchgrass)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A stunning, native dune grass, 'Dewey Blue' is perfect for coastal areas as well as inland gardens. Heat, drought, and humidity won't faze its noticeably graceful habit. This grass has exceptional blue foliage and a vigorous constitution. Airy, light beige flowers emerge in late summer and fall, persisting well into winter for a long season of interest. 'Dewey Blue' grows 4 to 5 feet tall and almost as wide.

Panicum virgatum 'Prairie Fire' Panicum virgatum 'Prairie Fire'
(‘Prairie Fire’ red switchgrass)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Prairie Fire' is a distinctly red form of switchgrass. Blue-green spring foliage turns shades of deep red by early summer and butter yellow in late fall. The grass persists into winter. 'Prairie Fire' has a fibrous root system that grows to more than 10 feet deep, making it drought tolerant. -Scott Vogt, Native grasses, Fine Gardening issue #124

Panicum virgatum 'Ruby Ribbons' Panicum virgatum 'Ruby Ribbons'
(Switch Grass)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Panicum Ruby Ribbons’ soft blue-green foliage emerges in the spring on upright, clumping plants. The foliage takes on a wine-red color in early summer, which intensifies as the season progresses. Flower heads appear in late summer, followed by ornamental seed heads, which, if left uncut, provide long-lasting winter interest.

Panicum virgatum 'Shenandoah' Panicum virgatum 'Shenandoah'
('Shenandoah' red switchgrass)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Shenandoah' is truly a plant for all seasons. In early summer, its leaf blades are tipped in red, and by autumn, the entire leaf is a rich burgundy color, topped by pink plumes. In winter, the leaf color fades to beige; the blades persist and offer cover to birds. 'Shenandoah' is a compact selection of an American native prairie grass. -Chris Kelley, Regional Picks: Midwest, Fine Gardening issue #120

no image available Panicum virgatum ‘Heavy Metal’
(Switch grass)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This rhizomatous perennial grass has a narrowly upright, clumping form. Mid-green stems bear stiff, erect, blue-gray leaves to 24 inches long. Foliage turns yellow in autumn. Weeping panicles of tiny purple-green spikes appear in early autumn.

Papaver orientale 'Flamenco Dancer' Papaver orientale 'Flamenco Dancer'
(Poppy)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The 4- to 6-inch-wide blooms of 'Flamenco Dancer' poppy stand out in late spring and early summer with their true red color and fanciful fringes. It is a sport of the popular 'Turkenlouis'. After the flowers fade, this perennial will go dormant, so plant it near neighbors that will fill the vacancy.

Pardanthopsis dichotoma Pardanthopsis dichotoma
(Vesper iris)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The flowers of vesper iris open in the late afternoon over a period of several minutes, just about the time the sound of evening vespers might have wafted over an old monastery garden. It is a valuable addition to the garden also because of its late blooming season (high summer into early fall) and for its ability to bloom from seed started the same spring. The vesper iris has typical iris-looking leaf fans and abundantly branched, willowy bloom stalks rising to 4 feet. The inch-wide flowers range in color from pure white to violet.

Parrotia persica Parrotia persica
(Persian parrotia tree, Persian ironweed)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Parrotia persica has one of the most beautiful foliage displays, in addition to year-round eye appeal and ease of maintenance. Reddish-purple when unfolding in spring, the leaves are a lustrous dark green in summer, and yellow to orange or scarlet in fall. Leaves hold their color for a long period. Older branches and trunks develop an exfoliating gray, green, white, and brown color that is a welcome asset in the winter garden. It grows successfully in Zones 4 to 8, tolerates sun and partial shade, and is easy to transplant. Often, vegetatively propogated forms offer more reliable fall color.

Parthenium integrifolium Parthenium integrifolium
(Wild quinine, American feverfew)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Wild quinine bears lustrous foliage and long-lasting white flowers throughout the season, even in heat and drought. It is native to moist prairies, low meadows, and open woods from Massachusetts and Minnesota, south to Georgia and Arkansas.

Passiflora caerulea Passiflora caerulea
(Blue passion flower)
(4 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant produces 3- to 4-inch-diameter, slightly scented flowers sporadically during summer, increasing in late summer through autumn. Intricate blossoms have an outer ruffle of petals and sepals; an inner disc of filaments composed of rings of blue, white and purple; and a central “antenna.” Deeply lobed dark green leaves cover stems that grasp supports with tendrils. Blue passion flower can reach 10 feet tall in one season. The ovoid, orange-yellow fruit is edible.

Patrinia scabiosifolia Patrinia scabiosifolia
(Patrinia)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

From a basal mound of toothed leaves (similar to scabiosa's foliage) rise 4- to 6-foot stems of tiny chrome-yellow flowers.

Pennisetum alopecuroides Pennisetum alopecuroides
(Fountain grass)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species produces 2- to 5-foot-tall mounds of narrow green foliage and bottle brush-like silvery-pink to purple flowers, both of which mature to shades of brown. It is the parent of numerous cultivars with notable flowers that range from purple to gray/black. It and some of its cultivars self-sow plentifully in warm climates. It is marginally hardy in Zone 5.

Pennisetum orientale Pennisetum orientale
(Oriental fountain grass, Tall tails)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Pink, bottle-brush flowers rise well above arching clumps of graceful foliage in summer. This grass is beautiful in a mixed border, rock garden, or massed at waterside. It blooms in June with pink plumes.

Penstemon barbatus Penstemon barbatus
(Beardlip penstemon)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This erect perennial has basal rosettes and stems bearing lance-shaped mid-green leaves. The plant bears long panicles of scarlet or yellow flowers from early summer to early autumn.

Penstemon cardinalis Penstemon cardinalis
(Cardinal penstemon)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This New Mexico/Texas native offers the garden spikes of dangling, rich red flowers in midsummer that attract hummingbirds. Grow in a border, rock garden, or cottage garden. It appreciates a moist but well-drained soil, but can also take more xeric habitats.

no image available Penstemon clutei
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This upright perennial sports hanging, tubular bright-pink flowers to 1 inch across above serrated blue-green leaves. It blooms summer to fall.


Displaying 1 - 20 of 153 listings   1 | 2 | 3 | 4 | 5 | 6 | 7 | 8View AllNext > Sort By: Sort