Peruvian Old Man Cactus
Espostoa lanata
From South Ecuador and north Peru. Columnar cactus, branching with age. Slow growing in pots, fairly f...
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Peruvian Scilla
Scilla peruviana
Mediterranean native. Large bulb produces numerous, rather floppy leaves; in late spring, 10- to 12-in...
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Petunia
Petunia hybrid
Low-growing, bushy to spreading plants with thick, broad leaves that are slightly sticky to the touch....
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Pheasant's-tail Grass
Anemanthele lessoniana
From New Zealand. This fine-textured, colorful, cool-season grass grows quickly to form a dense tuft 2...
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Pickerel Weed
Pontederia cordata
Native to eastern North America. To 3–4 ft. tall, 2–2 1/2 ft. wide. Long-stalked, glossy green leaves ...
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Piggyback Plant
Tolmiea menziesii
Native to Coast Ranges fromNorthern California northward toAlaska. Chief asset is abundantproduction o...
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Pigmy Date Palm
Phoenix roebelenii
Native to Laos. This small, slow, single-trunked palm grows 6 to 10 ft. high. Fine-textured, curving l...
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Pilikai
Merremia tuberosa
Native to tropical America but naturalized throughout the tropics. Climbs to 50–100 ft.,with 6-i...
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Pimpernel
Anagallis
Two colorful species are seen in the West, one an annual weed and the other an attractive perennial. N...
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Pin Oak
Quercus palustris
Moderate to fairly rapid growth to 50–80 ft. tall, 30–40 ft.wide. Brownish gray bark with ...
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Pincushion
Leucospermum
Like proteas, pincushions are difficult to grow, but extra effort is rewarded with spectacular cluster...
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Pincushion Flower
Scabiosa
Stamens protrude beyond curved surface of flower head, giving illusion of pins stuck into a cushion. B...
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