Peltandra sagittifolia Peltandra virginica
Penstemon barbatus Penstemon barbatus 'Bashful'
Penstemon barbatus 'Elfin Pink' Penstemon barbatus 'Prairie Dusk'
Penstemon barbatus 'Rondo' Penstemon barrettiae
Penstemon caespitosus 'Claude Barre' Penstemon cobaea
Penstemon digitalis Penstemon digitalis 'Husker Red'
Penstemon eatonii Penstemon fructicosus 'Purple Haze'
Penstemon glaber Penstemon grinnellii
Penstemon guadalupsis Penstemon heterophyllus 'Margarita BOP'
Penstemon heterophyllus 'Platina White' Penstemon isophyllus
Penstemon linarioides Penstemon pinifolius
Penstemon strictus Penstemon whippleanus
Peperomia obtusifolia Peperomia obtusifolia 'Variegata'
Persea borbonia Persea palustris
Petasites frigidus var. palmatus 'Golden Palm' Petrea volubilis
Petrophytum hendersonii Phacelia campanularia
Philadelphus inodorus Philodendron sanguineum
Philodendron scandens Philodendron scandens ssp. oxycardium
Phlox divaricata Phlox divaricata 'Blue Moon'
Phlox divaricata 'Montrose' Phlox divaricata 'Sweet Lilac'
Phlox divaricata ssp. laphamii Phlox drummondii
Phlox maculata 'Flower Power' Phlox maculata 'Miss Lingard'
Phlox maculata 'Natasha' Phlox nana
Phlox paniculata Phlox paniculata 'Africa'
Phlox paniculata 'Australia' Phlox paniculata 'Becky Towe'
Phlox paniculata 'Blue Paradise' Phlox paniculata 'Bright Eyes'
Phlox paniculata 'Creme de Menthe' Phlox paniculata 'David'
Phlox paniculata 'Dodo Hanbury Forbes' Phlox paniculata 'Eva Cullum'
Phlox paniculata 'Fairest One' Phlox paniculata 'Flamingo'
Phlox paniculata 'Franz Schubert' Phlox paniculata 'Juliet'
Phlox paniculata 'Laura' Phlox paniculata 'Little Princess'
Phlox paniculata 'Lizzy' Phlox paniculata 'Miss Elie'
Phlox paniculata 'Mt. Fuji' Phlox paniculata 'Nicky'
Phlox paniculata 'Nora Leigh' Phlox paniculata 'Orange Perfection'
Phlox paniculata 'Pinafore Pink' Phlox paniculata 'Prime Minister'
Phlox paniculata 'Red Riding Hood' Phlox paniculata 'Sandra'
Phlox paniculata 'Shortwood' Phlox paniculata 'Starfire'
Phlox paniculata 'Tenor' Phlox paniculata 'The King'
Phlox paniculata 'Windsor' Phlox serruluta
Phlox stolonifera Phlox stolonifera 'Home Fires'
Phlox stolonifera 'Pink Ridge' Phlox stolonifera 'Sherwood Purple'
Phlox subulata Phlox subulata 'Apple Blossom'
Phlox subulata 'Atropurpurea' Phlox subulata 'Candy Stripes'
Phlox subulata 'Coral Eyes' Phlox subulata 'Cracker Jack'
Phlox subulata 'Crimson Beauty' Phlox subulata 'Cunningham'
Phlox subulata 'Dirigo Arbutus' Phlox subulata 'Emerald Blue'
Phlox subulata 'Emerald Cushion' Phlox subulata 'Emerald Pink'
Phlox subulata 'Fort Hill' Phlox subulata 'Laurel Beth'
Phlox subulata 'Millstream Daphne' Phlox subulata 'Oakington Blue Eyes'
Phlox subulata 'Red Wings' Phlox subulata 'Scarlet Flame'
Phlox subulata 'Snowflake' Phlox subulata 'White Delight'