'Perfect' Heartleaf Bergenia 'Perfecta Alba' Pincushion Flower: caucasica
'Perfecta' Amaranth: hybrid 'Perfecta' Baby's Breath
Periwinkle, Big (spp.) Periwinkle, Big 'Even Steven'
Periwinkle, Big 'Gold Vein' Periwinkle, Big Variegated
Periwinkle, Bigleaf (spp.) Periwinkle, Bigleaf 'Even Steven'
Periwinkle, Bigleaf 'Gold Vein' Periwinkle, Bigleaf Variegated
Periwinkle, Common (spp.) Periwinkle, Common 'Bowle's Variety'
Periwinkle, Common 'Illumination' Periwinkle, Common 'Sterling Silver'
Periwinkle, Common Variegated Periwinkle, Greater (spp.)
Periwinkle, Greater 'Even Steven' Periwinkle, Greater 'Gold Vein'
Periwinkle, Greater Variegated Periwinkle, Large (spp.)
Periwinkle, Large 'Even Steven' Periwinkle, Large 'Gold Vein'
Periwinkle, Large Variegated Periwinkle, Madagascar (spp.)
Periwinkle, Madagascar 'First Kiss Blueberry' Periwinkle, Madagascar 'Parasol'
Periwinkle, Madagascar 'Pastels Mix' Periwinkle, Madagascar 'Pretty in Rose'
Periwinkle, Madagascar 'Raspberry Cooler' Periwinkle, Madagascar 'Rose Carpet'
Periwinkle, Madagascar 'Stardust Mix' Periwinkle, Madagascar 'Stardust Orchid'
Periwinkle, Rose (spp.) Periwinkle, Rose 'First Kiss Blueberry'
Periwinkle, Rose 'Parasol' Periwinkle, Rose 'Pastels Mix'
Periwinkle, Rose 'Pretty in Rose' Periwinkle, Rose 'Raspberry Cooler'
Periwinkle, Rose 'Rose Carpet' Periwinkle, Rose 'Stardust Mix'
Periwinkle, Rose 'Stardust Orchid' Perky Sue
'Perry's Giant Sunburst' Sacred Lotus 'Perry's Variety' Daylily
Persian Buttercup (spp.) Persian Buttercup 'Bloomingdales Pink Shades'
'Persian Chocolate' Golden Globes Persian Cornflower (spp.)
Persian Cornflower 'Rose' Persian Fritillary
Persian Insect Flower (spp.) Persian Insect Flower 'Painted Daisy'
Persian Insect Flower 'Robinson Hybrids' Persian Insect Flower 'Robinson's Mix'
Persian Insect Flower 'Robinson's Red' Persian Onion (spp.)
Persian Onion: christophii 'Persian Rose' Bushy Aster
Persian Shield Persian Stone Cress
Persian Violet (spp.) Persian Violet 'Silver Form'
Persian Violet: affine (spp.) Persian Violet: affine 'Tiddly Winks'
Persian Violet: coum Persian Violet: persicum
Peruvian Apple (spp.) Peruvian Apple 'Monstrosus'
Peruvian Lily (spp.) Peruvian Lily: hookeri
Peruvian Lily: hybrid 'Petite Plum' Peruvian Lily: hybrid 'Princess Lily'
Peruvian Lily: hybrid 'Sweet Laura' Peruvian Lily: hybrid 'Walter Fleming'
Peruvian Lily: psittacina (spp.) Peruvian Lily: psittacina Variegated
Peruvian Old Man Cactus Peruvian Swamp Lily
Peruvian Vervain 'Peter Harrison' Bushy Aster
'Peter III' New York Aster 'Peter Pan' Lily of the Nile: Agapanthus
'Petite Marbled Burgundy' Alumroot: Heuchera 'Petite Pearl Fairy' Alumroot: Heuchera
'Petite Plum' Lily of the Incas: hybrid 'Petite Rouge' Daylily
'Petite Salmon' Oleander 'Petite Wonder' Bee Balm: Monarda