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- Origanum vulgare
The common culinary herb Oregano. A good choice for an herb garden or kitchen green roof. Ornamental and shade tolerant.
- Orostachys aggregatum
A mat of interwoven bright apple-green rosettes that over the season grow skyward into flower stalks that bloom in the Fall. Attracts pollinators.
- Orostachys boehmeri
Unusual gray foliage plant with "dunce cap" shaped flower stalks that bloom white in the fall. Attracts pollinators.
- Penstemon barbatus
A major attractor of hummingbirds with its bright scarlet-red tubular flowers held high above foliage on tall stems. North American Native. Green foliage in winter.
- Penstemon hirsutus
New for 2013 - North American Native that attracts many pollinators. Light purple and white flowers. Requires some shade or irrigation.
- Penstemon pinifolius
A major attractor of hummingbirds with its bright red-orange tubular flowers held high above foliage on tall stems. North American Native. Green foliage in winter.
- Penstemon strictus
New for 2013 - North American Native with stunning blue-purple flowers. Often included in wildflower seed mixes.
- Petrorhagia saxifraga
A plant with many tiny pale pink flowers. Very fine textured light green foliage. Extremely drought tolerant. Tolerates some shade.
- Phacelia campanularia
Bell-shaped flowers in bright eye-catching blue bloom from spring until frost. Pink to bronze-purple autumn foliage. US Native. Tolerates some shade. Available as seed, or over-seeded in flats.
- Phedimus takesimensis 'Golden Carpet'
Fast growing with substantial foliage. Holds its leaves much longer into the winter. May remain green all winter in mild weather. Shade tolerant.
- Phlox subulata
A beautiful carpet of flowers in very early spring. Green foliage through winter. North American Native. Tolerates shade.
- Portulaca pilosa
New for 2013 - A quick spreading North American Native with magenta blooms all summer long! Tolerates some shade, but prefers full sun.
- Potentilla neumanniana syn. P. verna
New for 2013 - Spectacular foliage similar to strawberry leaves with sunny yellow flowers. Forms low mat. Shade tolerant.
- Prunella grandiflora
New for 2013 - watch this space for an update soon
- Sedum 'Matrona' syn. Hylotelephium
Dark red stems and pink tinged gray-green foliage contrast nicely with bright pink flowers. Good for adding height to a roof.
- Sedum acre
Tiny leaves form low-growing clumps. Dies back in hot humid summers. Needs shade in most locations.
- Sedum aizoon 'Euphorbioides'
A remarkable shrub-like plant. Bright red stems and large yellow flowerheads. Pink fall color. Deciduous.
- Sedum album
Well known as a staple plant in the green roof industry - with good reason! A green carpet with white flowers in summer. Bright red foliage in winter.
- Sedum album 'Coral Carpet'
Smaller leaves and form than the species, producing a tight, very low-growing mat. Gorgeous red winter color.
- Sedum album 'France'
A larger album with more rounded leaves than the species. Handsome and robust.