'Prince' Calico Aster 'Prince Henry' Hybrid Windflower
'Prince Henry' Japanese Windflower Prince of Wales Feather (spp.)
Prince of Wales Feather 'Pygmy Torch' 'Prince Rupert' Sweet Scented Geranium
Prince's Feather (spp.) Prince's Feather 'Pygmy Torch'
'Princess Black Centered Orange' Pot Marigold Princess Flower, Large Leaf
Princess Flower, Silver Leaf 'Princess Lily' Lily of the Incas: hybrid
'Princess Victoria Louise' Oriental Poppy 'Priscilla' Florist's Chrysanthemum
'Prism Sunshine' Garden Petunia 'Professor Claude' Louisiana Iris
'Profusion Cherry' Zinnia 'Profusion Orange' Zinnia
'Profusion White' Zinnia Prophet, Weather
'Prosperity' Oregon Fleabane Prostrate Petunia
Prostrate Speedwell 'Aztec Gold' Prostrate Speedwell 'Blue Sheen'
Prostrate Spurge 'Prostratus' Creeping Germander
Protea 'Fiery Dutchess' Protea 'Pink Ice'
Protea 'Susara' Protea, Botrivier (spp.)
Protea, Botrivier 'Red Baron' Protea, Giant
Protea, King Protea, Oleander Leaved (spp.)
Protea, Oleander Leaved 'Pink Splash' Pseuderanthemum 'Tricolor'
Puccoon, Red (spp.) Puccoon, Red 'Multiplex'
Pulque Agave 'Pumila' Chinese Astilbe
'Pumila' Pampas Grass Pumila Spirea (spp.)
Pumila Spirea 'Finale' Pumila Spirea 'Pumila'
Punch Bowl Godetia 'Punchline' Daffodil
'Pure Beauty Fuchsia' New Guinea Impatiens 'Purity' Evergreen Candytuft
'Purple and Gold' Japanese Iris Purple Autumn Sage
Purple Avens 'Purple Beauty' Creeping Thyme
Purple Bell Vine Purple Betony (spp.)
Purple Betony 'Grandiflora' 'Purple Blaze' Scarlet Sage: splendens
Purple Coneflower (spp.) Purple Coneflower 'Bright Star'
Purple Coneflower 'Kim's Knee High' Purple Coneflower 'Kim's Mophead'
Purple Coneflower 'Magnus' Purple Coneflower 'Primadonna® Rose'
Purple Coneflower 'Ruby Star' Purple Coneflower 'Stewarts Pink'
Purple Coneflower 'Stewarts Red' Purple Coneflower 'White King'
Purple Coneflower 'White Swan' Purple Coral Pea (spp.)
Purple Coral Pea 'Happy Wanderer' Purple Cranesbill
Purple Dancing Ladies (spp.) Purple Dancing Ladies 'White Dragon'
'Purple Dome' New England Aster 'Purple Dome' Virginia Spiderwort
'Purple Dragon' Spotted Dead Nettle Purple Dutch Clover (spp.)
Purple Dutch Clover 'Atropurpureum' Purple Dutch Clover 'Wheatfen'
'Purple Fan' Virginia Iris 'Purple Fields' Garden Ageratum
'Purple Flame' Gladiolus 'Purple Fountain' Sage: Salvia
Purple Fruited Prickly Pear 'Purple Gem' Dwarf Iris
Purple Horn of Plenty 'Ballerina Mix' 'Purple Knockout' Cancer Weed
Purple Lamb's Ears 'Robusta' Purple Loosestrife (spp.)
Purple Loosestrife 'Firecandle' Purple Loosestrife 'Robert'
Purple Loosestrife: anceps 'Purple Majesty' Millet
'Purple Majesty' Purple Millet Purple Millet 'Purple Majesty'
Purple Net Toadflax 'Crown Jewels' 'Purple Parasols' Stokes' Aster
Purple Parsnip 'Purple Passion' Bearded Tongue: Penstemon
'Purple Passion' Purple Passion Vine Purple Passion Vine 'Purple Passion'
Purple Pitcher Plant Purple Prairie Clover
'Purple Pygmy' Mexican Hyssop 'Purple Queen' Spider Plant: hassleriana
'Purple Rain' Jacob's Ladder 'Purple Rain' Lilac Sage
Purple Rockcress (spp.) Purple Rockcress 'Snow Cap'
Purple Rockcress 'Whitewell Gem' 'Purple Ruffles' Sweet Basil
Purple Sage: leucantha (spp.) 'Purple Sails' Alumroot: Heuchera
Purple Shamrock (spp.) Purple Shamrock 'Atropurpurea'
Purple Shrimp 'Purple Stars' Balloon Flower
Purple Sugar Cane Purple Toadflax 'Canon J. Went'
Purple Trillium Purple Velvet Plant 'Purple Passion'
Purple Verbena Purple Waffle Plant 'Exotica'
'Purple Waters' Daylily 'Purple Wave™' Garden Petunia
'Purple with purple leaves' Crested Celosia Purple-leaved Loosestrife (spp.)
Purple-leaved Loosestrife 'Atropurpurea' Purple-leaved Loosestrife 'Firecracker'
Purple-leaved Loosestrife 'Purpurea' Purple-spot Parrot Lily
'Purpurascens' Chinese Fountain Grass 'Purpurascens' Maiden Grass
'Purpurea' Almond Spurge 'Purpurea' Carpet Bugle
'Purpurea' Garden Sage 'Purpurea' Ground Clematis
'Purpurea' Hairy Alumroot 'Purpurea' Purple-leaved Loosestrife
'Purpurea Superba' Jackman Clematis 'Purpurescens' Flowering Fern
'Purpureum' Fountain Grass: setaceum 'Purpureum' Mourning Widow Cranesbill
'Purpureum' New Zealand Flax 'Purpureus' Gas Plant