'Plus' Florist's Chrysanthemum Plush Plant
Plush Plant: tomentosa 'Pluto' Philodendron
PMC Manzanita 'Pmint Rosita' Blue Love Grass
Poached Egg Flower 'Pocahontas' Lilac: hyacinthiflorahybrid
Pocketbook Flower Pocketbook Flower: falklandica
Pocketbook Plant: hybrid 'Cinderella Mix' Pocketbook Plant: hybrid 'Cinderella Red'
Pocketbook Plant: hybrid 'Cinderella Yellow with Dots' 'Pocohantas' Possum Haw Holly
Podocarp, Chilean Podocarp, Rockingham
Podocarp, Tasmanian Podocarp, Willow
Podocarp, Willowleaf Podocarpus
Podocarpus, Broadleaf Podocarpus, Chinese (spp.)
Podocarpus, Chinese 'Maki' Podocarpus, Fern
Podocarpus, Long Leafed Yellowwood Podocarpus, Nagi
Podocarpus, Weeping Podocarpus: gracilior
Podocarpus: latifolius Podocarpus: usambarensis
'Poestlingberg' Magnolia Waterlily Poet's Jasmine 'Fiona Sunrise'
Pohinahina (spp.) Pohinahina 'Wild Korea'
'Poin Set' Daylily Poinciana
Poinciana, Dwarf Poinciana, Mexican
Poinciana, Royal Poinciana, Yellow
Poinciana: dubium 'Poinsett' Flowering Dogwood
Poinsettia (spp.) Poinsettia 'Peterstar Silver Bells'
Poinsettia 'V-14 Pink' Poinsettia 'V-17 Angelika White'
Poinsettia 'Winter Rose' Poinsettia, Japanese (spp.)
Poinsettia, Japanese 'Yokoi's White' Poinsettia: tricolor, Summer 'Molten Fire'
'Point Reyes' Manzanita Point Reyes Ceanothus
Point Reyes Ceanothus: gloriosus Point Reyes Creeper
Point Reyes Creeper: gloriosus Pointed Barrenwort
Poison Bulb Poison Hemlock
Poison Ivy Poison Mercury
Poison Oak, Western Poison Primrose (spp.)
Poison Primrose 'Apple Blossom' Poison Sumac
Poisonberry Poisonous Nightshade
Poisontree, Florida Poisonwood
Poisonwood, Black Poke (spp.)
Poker Plant (spp.) Poker Plant 'Early Hybrids'
Poker Plant 'Flamenco' Poker Plant 'Flava'
Poker Plant 'Lola' Poker Plant 'Pfitzeri'
Poker Plant 'Primrose Beauty' Poker Plant 'Springtime'
Pokeweed (spp.) 'Polar Star' African Daisy: Osteospermum
Polemonium, Arctic 'Heavenly Habit' Polemonium, Creeping
Polka Dot Plant (spp.) Polka Dot Plant 'Confetti Red'
'Polka' Old Fashioned Weigela 'Polo Salmon' Garden Petunia
Polyanthus Primrose (spp.) Polygala, Fringed
Pomaderris Pomaderris, Golden
Pomegranate (spp.) 'Pomegranate' Yarrow
Pomegranate Dwarf 'Pompom' China Aster