Poke (spp.) Poker Plant (spp.)
Poker Plant 'Flamenco' Poker Plant 'Pfitzeri'
Poker Plant 'Primrose Beauty' Poker Plant 'Springtime'
Pokeweed (spp.) Pond Cypress (spp.)
Pond Cypress 'Morris (Debonair)' Pond Cypress 'Prairie Sentinel'
Pond Pine Pondcypress (spp.)
Pondcypress 'Morris (Debonair)' Pondcypress 'Prairie Sentinel'
Ponderosa Pine Pop Ash
Porcelain Berry Vine (spp.) 'Portrait' Rose
Portugal Lauel Portugese Laurel Cherry
Possum Haw Holly (spp.) Possum Haw Holly 'Benton'
Possum Haw Holly 'Byers Golden' Possum Haw Holly 'Cascade'
Possum Haw Holly 'Council Fire' Possum Haw Holly 'Hunter'
Possum Haw Holly 'Miller City' Possum Haw Holly 'Pocohantas'
Possum Haw Holly 'Sentry' Possum Haw Holly 'Sundance'
Possum Haw Holly 'Warren's Red' Possum Haw (spp.)
Possum Haw Viburnum (spp.) Possum Haw Viburnum 'Brandywine™'
Possum Haw Viburnum 'Winterthur' Possum Haw 'Brandywine™'
Possum Haw 'Winterthur' Post Oak
Pot of Gold (spp.) Pot of Gold 'Baby Sun'
Pot of Gold 'Goldfink' Pot of Gold 'Sterntaler'
Pot of Gold: verticillata 'Golden Showers' Pot of Gold: verticillata 'Grandiflora'
Pot of Gold: verticillata 'Moonbeam' Pot of Gold: verticillata 'Zagreb'
Prague Viburnum (spp.) 'Prairie Blue Eyes' Daylily
Prairie Crabapple Prairie Dropseed Grass
Prairie Grass (spp.) Prairie Grass 'The Blues'
'Prairie Moonlight' Daylily 'Prairie Pride' Common Hackberry
'Prairie Sentinel' Pond Cypress 'Prairifire' Flowering Crabapple
Prickly Acacia Prickly Ash, Southern
Prickly Cedar Prickly Juniper
Prickly Pear Cactus: compressa Prickly Pear Cactus: leucotricha
Prickly Pear Cactus: microdasys Prickly Pear Cactus: phaeacantha discata
Prickly Pear, Blind Prickly Pear, Eastern
'Prime Minister' Summer Phlox 'Primrose Beauty' Red Hot Poker
Primrose, Narrow Leaf Evening (spp.) 'Princess Alice' Rose
'Princess Diana' Apple Serviceberry 'Princeton Purple' Butterflybush: hybrid
'Pristine' Rose Privet, Border
Privet, Chinese (spp.) Privet, Chinese 'Excelsum Superbun'
Privet, Common (spp.) Privet, Common 'Lodense'
Privet, Florida Privet, Glossy (spp.)
Privet, Glossy 'Excelsum Superbun' Privet, Golden (spp.)
Privet, Japanese (spp.) Privet, Japanese 'Curly Leaf'
Privet, Texas (spp.) Privet, Texas 'Curly Leaf'
Privet, Vicary (spp.) Privet, Waxleaf (spp.)
Privet, Waxleaf 'Curly Leaf' 'Professor Sprenger' Flowering Crabapple
'Profusion' Flowering Crabapple 'Prostrata' Coast Redwood
Prostrate Acacia 'Pseudocupressus' Eastern Red Cedar
Puka Pukanui
'Pulcherrima' American Arborvitae Pulque Agave
'Pulverulenta' Black Elderberry