Prairie Crabapple 'Prairie Joy' Rose
'Prairie Petite' Lilac 'Prairie Pride' Common Hackberry
'Prairie Sentinel' Pond Cypress 'Prairifire' Flowering Crabapple
'Precious Platinum' Rose 'Pres. Grevy' Common Lilac
'President Lincoln' Common Lilac Preston Lilac 'Coral'
Preston Lilac 'James Macfarlane' Preston Lilac 'Minuet'
Preston Lilac 'Miss Canada' Preston Lilac 'Red Wine'
Prickley Ash, Lime Prickly Acacia
Prickly Ash, Chinese Prickly Ash, Common
Prickly Ash, Flatspine Prickly Ash, Northern
Prickly Ash, Southern Prickly Castor Oil Tree
Prickly Cedar Prickly Juniper
Prickly Leaved Paperbark Prickly Leaved Wattle
Prickly Moses Prickly Tea Tree 'Horizantalis'
Pride of Bolivia Pride of India (spp.)
Pride of India 'Jade Snowflake' 'Primavera' Witchhazel: intermediahybrid
'Primrose Beauty' Shrubby Cinquefoil 'Primrose' Common Lilac
Primrose Jasmine 'Prince of Wales' Creeping Juniper
'Princess Alice' Rose 'Princess Diana' Apple Serviceberry
Princess Flower Princess Flower, Silver-leaf
Princess Palm 'Princess' Shrubby Cinquefoil
Princess Tree Princess Tree: tomentosa
'Princeton' American Elm 'Princeton Gold' Chinese Witchhazel
'Princeton Purple' Butterflybush: hybrid 'Prinz Handjeryi' Planetree Maple
'Pristine' Rose 'Pristine' Saucer Magnolia: soulangianahybrid
Privet Privet 'Little Thomas'
Privet, Border Privet, Chinese (spp.)
Privet, Chinese 'Excelsum Superbun' Privet, Chinese 'Tricolor'
Privet, Common (spp.) Privet, Common 'Lodense'
Privet, Florida Privet, Glossy (spp.)
Privet, Glossy 'Excelsum Superbun' Privet, Glossy 'Tricolor'
Privet, Golden (spp.) Privet, Japanese (spp.)
Privet, Japanese 'Curly Leaf' Privet, Mock
Privet, New Mexico Privet, Texas (spp.)
Privet, Texas 'Curly Leaf' Privet, Vicary (spp.)
Privet, Waxleaf (spp.) Privet, Waxleaf 'Curly Leaf'
Privet: salicifolium Privet: sinense, Chinese 'Sunshine'
Privet: sinense, Chinese Variegated 'Procumbens' Norway Spruce
'Prof. E. H. Wilson' Common Lilac 'Professor Sprenger' Flowering Crabapple
'Profusion' Flowering Crabapple 'Profusion' White Star
'Prostrata' Coast Redwood 'Prostrata' Japanese Plum Yew
'Prostrata' Norway Spruce Prostrate Acacia
'Prostrate Beauty' Korean Fir 'Prostrate Blue' Blue Rat's Tail
'Prostrate Blue Mist' Colorado Spruce 'Prostrate Blue' Snakeweed
Prostrate Juniper Prostrate Tea Tree
'Prostratum Pink Cascade' New Zealand Tea Tree 'Prostratus' Rosemary
'Prostratus' Sage Leaf Rock Rose 'Provence' Azalea
'Provence' Lavender Provision Tree
Pseuderanthemum, Red 'Pseudocupressus' Eastern Red Cedar
Puerto Rican Royal Palm