[ P ]
Pachysandra terminalis [ Japanese Pachysandra ]
Paeonia sp. [ Peony ]
Paeonia suffruticosa [ Tree Peony; Mountan ]
Panicum virgatum [ Switch Grass ]
Papaver nudicaule [ Iceland Poppy ]
Papaver orientale [ Oriental Poppy ]
Parrotia persica [ Persian Ironwood ]
Parthenocissus quinquefolia [ Virginia Creeper ]
Parthenocissus tricuspidata [ Boston Ivy ]
Passiflora caerulea [ Passion Flower ]
Pelargonium grandiflorum [ Regal Pelargonium ]
Pelargonium hortorum [ Pelargonium; Geranium ]
Pennisetum alopecuroides [ Fountaingrass ]
Pennisetum setaceum [ Crimson Fountaingrass ]
Penstemon sp. [ Beardtongue ]
Pentaglottis sempervirens [ Green Alkanet; Evergreen Bugloss ]
Pericallis x hybrida [ Florists Cineraria; Senetti ]
Perilla frutescens [ Perilla Beefsteak Plant ]
Perovskia atriplicifolia [ Russian Sage ]
Persicaria affinis [ Knotweed ]
Persicaria campanulata [ Bellflower Knotweed ]
Persicaria microcephala [ Red Dragon Knotweed ]
Persicaria vacciniifolia [ Knotweed ]
Petasites fragrans [ Winter Heliotrope ]
Petunia x hybrida [ Petunia; Surfinia ]
Phacelia tanacetifolia [ Lacy Phacelia ]
Phaseolus vulgaris [ Common Bean ]
Philadelphus sp. [ Mock Orange ]
Phlomis fruticosa[ Jerusalem Sage ]
Phlomis russeliana [ Sticky Jerusalem Sage ]
Phlox drummondii [ Annual Phlox ]
Phlox paniculata [ Tall Phlox ]
Phlox subulata [ Creeping Phlox ]
Phormium cookianum [ Mountain Flax ]
Photinia davidiana [ Chinese Photinia; Christmas Berry ]
Photinia x fraseri [ Fraser Photinia; Christmas Berry; Red Robin ]
Phygelius x rectus [ Cape Fuchsia ]
Phyllostachys nigra [ Black Bamboo ]
Physalis alkekengi [ Chinese Lantern ]
Physocarpus opulifolius [ Ninebark ]
Phytolacca acinosa [ Indian Poke ]
Picea breweriana [ Brewer’s Spruce ]
Picea glauca [ White Spruce ]
Picea pungens [ Blue Spruce ]
Pieris japonica [ Japanese Andromeda ]
Pieris sp. [ Andromeda ]
Pinus radiata [ Radiata Pine ]
Pinus wallichiana [ Himalayan Pine; Butan Pine ]
Pisum sativum [ Common Pea ]
Pittosporum tenuifolium [ Kohuhu ]
Plantago lanceolata [ Ribwort Plantain ]
Platycodon grandiflorus [ Balloon Flower ]
Plectranthus caninus [ Scaredy Cat Plant ]
Plectranthus ciliatus [ Purple Plectranthus; Spur Flower ]
Plectranthus forsteri [ Swedish Ivy ]
Pleiospilos compactus [ Living Granite ]
Podocarpus salignus [ Willow-leaf Podocarp ]
Polanisia dodecandra [ Clammyweed ]
Polemonium caeruleum [ Jacob’s Ladder ]
Polemonium foliosissimum [ Leafy Jacob’s Ladder ]
Polygala chamaebuxus [ Shrubby Milkwort ]
Polygonatum x hybridum [ Solomon’s Seal ]
Polystichum munitum [ Western Sword Fern ]
Polystichum polyblepharum [ Japanese Tassel Fern ]
Polystichum rigens [ Tassel Fern ]
Polystichum setiferum [ Soft Shield Fern ]
Poncirus trifoliata [ Japanese Bitter Orange ]
Pontederia cordata [ Pickerel Weed ]
Populus tremula [ Common Aspen ]
Populus x jackii [ Balm of Gilead ]
Potentilla fruticosa [ Shrubby Potentilla; Shrubby Cinquefoil ]
Potentilla megalantha [ Wooly Strawberry Cinquefoil ]
Potentilla nepalensis [ Nepal Cinquefoil ]
Pratia perpusilla [ Whitestar Creeper ]
Primula capitata [ Asiatic Primrose ]
Primula denticulata [ Drumstick Primula ]
Primula frondosa [ Bird’s Eye Primrose ]
Primula japonica [ Japanese Primrose ]
Primula sp. [ Primrose; Polyanthus ]
Primula vialii [ Orchid Primrose ]
Primula veris [ Wild Cowslip ]
Primula vulgaris [ Common Primrose ]
Prostanthera cuneata [ Alpine Mint Bush ]
Prostanthera ovalifolia [ Oval-leaved Mint Bush ]
Prunella grandiflora [ Large Self-heal ]
Prunus cerasifera [ Purple Plum ]
Prunus laurocerasus [ Cherry Laurel ]
Prunus lusitanica [ Portugal Laurel ]
Prunus serrulata [ Japanese Flowering Cherry ]
Pseudopanax ferox [ Toothed Lancewood ]
Pseudosasa japonica [ Arrow Bamboo ]
Ptilotus exaltatus [ Pink Mulla Mulla ]
Pulmonaria rubra [ Red Lungwort ]
Pulmonaria saccharata [ Common Lungwort ]
Pulsatilla vulgaris [ Pasqueflower; Wind Flower ]
Pyracantha sp. [ Firethorn ]
Pyrus salicifolia [ Willow-leafed Pear; Weeping Pear ]
…
[ Q ]
Quercus castaneifolia [ Chestnut-leaved Oak ]
Quercus dentata [ Daimyo; Daimino Oak; Japanese Emperor Oak ]
Quercus ilex [ Holm Oak ]
Quercus macrolepis [ Vallonia Oak ]
Quercus rubra [ Northern Red Oak ]
….
[ R ]
Ranunculus asiaticus [ Large Ranunculus ]
Ranunculus ficaria [ Fig Buttercup; Lesser Celandine; Pilewort ]
Ranunculus lingua [ Greater Spearwort ]
Rehmannia elata [ Chinese Foxglove ]
Reseda odorata [ Common Mignonette ]
Rheum palmatum [ Chinese Rhubarb ]
Rheum rhabarbarum [ Common Rhubarb ]
Rhodanthe chlorocephala [ Strawflower ]
Rhodanthemum hosmariense [ Moroccan Daisy; Shasta Daisy ]
Rhodochiton atrosanguineus [ Purple Bell Vine ]
Rhododendron luteum – Azalea pontica [ Pontic Rhododendron; Yellow Azalea ]
Rhododendron scabrifolium [ Rhododendron ]
Rhus typhina [ Stag’s Horn Sumach; Velvet Sumach ]
Ribes sanguineum [ Flowering Currant ]
Ricinus communis [ Castor Bean; Dwarf Red Spire ]
Robinia pseudoacacia [ False Acacia ]
Rodgersia aesculifolia [ Chestnut-leaved Rodgersia ]
Rodgersia pinnata [ Feather-leaved Rodgersia ]
Rodgersia podophylla [ Japanese Rodgersia ]
Romneya coulteri [ Matilija Poppy ]
Rosa glauca [ Red-leaved Rose; Dog Rose ]
Rosa multiflora [ Multiflora Rose ]
Rosa rugosa [ Rugosa Rose ]
Rosa sp. [ Common Rose ]
Roscoea purpurea [ Purple Roscoea ]
Rosmarinus officinalis [ Rosemary ]
Rubus fruticosus [ Shrubby Blackberry ]
Rubus idaeus [ Common Raspberry ]
Rudbeckia fulgida [ Orange Coneflower ]
Rudbeckia hirta [ Blackeyed Susan ]
Rudbeckia laciniata [ Cutleaf Coneflower ]
Rudbeckia sp. [ Coneflower ]
Ruscus aculeatus [ Butcher’s Broom ]
Ruta graveolens [ Common Rue ]
…
[ S ]
Saintpaulia sp. [ African Violet ]
Salix caprea [ Goat Willow; Pussy Willow; Great Sallow ]
Salix integra [ Dwarf Japanese Willow; Flamingo Tree ]
Salix udensis [ Japanese Fantail Willow ]
Salix viminalis [ Common Osier ]
Salpiglossis sinuata [ Painted Tongue ]
Salvia farinacea [ Mealycup Sage ]
Salvia microphylla [ Cherry Sage ]
Salvia nemorosa [ Steppe Sage ]
Salvia officinalis [ Common Sage ]
Salvia patens [ Gentian Sage ]
Salvia splendens [ Scarlet Sage ]
Salvia uliginosa [ Bog Sage ]
Sambucus nigra [ European Elder; Black Elderberry ]
Sambucus racemosa [ Red Elderberry ]
Sanguisorba minor [ Salad Burnet ]
Sanguisorba officinalis [ Greater Burnet ]
Santolina chamaecyparissus [ Cotton Lavender ]
Sanvitalia procumbens [ Mexican Creeping Zinnia ]
Saponaria officinalis [ Common Soapwort ]
Saponaria sp. [ Alpine Soapwort ]
Sarcococca confusa [ Sweet Box ]
Sarcococca hookeriana [ Sweet Box ]
Sarcococca orientalis [ Sweet Box ]
Satureja montana [ Winter Savory ]
Saxifraga cortusifolia [ Autumn Saxifrage ]
Saxifraga sp.[ Saxifrage ]
Scabiosa atropurpurea [ Pincushion Flower; Scabious ]
Scabiosa columbaria [ Dove Pincushions; Small Scabious ]
Scaevola aemula [ Fairy Fan-Flower ]
Schisandra rubriflora [ Magnolia Vine ]
Schizophragma hydrangeoides [ Japanese Hydrangea Vine ]
Schizostylis coccinea [ Kaffir Lily ]
Schlumbergera sp. [ Christmas Cactus ]
Sciadopitys verticillata [ Japanese Umbrella Pine ]
Scilla siberica [ Siberian Squill ]
Scrophularia auriculata [ Water Figwort Betony ]
Scutellaria suffrutescens [ Pink Texas Skullcap ]
Sedum acre [ Common Stonecrop ]
Sedum kamtschaticum [ Kamschatka Stonecrop ]
Sedum rupestre [ Stone Orpine ]
Sedum spathulifolium [ Broadleaf Stonecrop ]
Sedum spectabile [ Ice Plant ]
Sempervivum arachnoideum [ Cobwebbed Houseleek ]
Senecio cirenaria [ Dusty Miller ]
Sequoiadendron giganteum [ Wellingtonia; Giant Redwood ]
Sesleria heufleriana [ Balkan Moor Grass ]
Silene dioica [ Red Campion; Red Catchfly ]
Silene uniflora [ Rock Campion ]
Silphium perfoliatum [ Cup Plant ]
Sisyrinchium californicum [ Yellow/Golden-eyed Grass ]
Sisyrinchium graminoides [ Stout Blue-eyed Grass ]
Sisyrinchium striatum [ Pale Yellow-eyed Grass ]
Skimmia japonica [ Skimmia ]
Smilax megalantha [ Coral Greenbrier ]
Solanum crispum [ Chilean Potato Vine ]
Solanum laxum [ Potato vine ]
Solanum pseudocapsicum [ Jerusalem Christmas Cherry; Coral Bush ]
Solenostemon scutellarioides [ Common Coleus ]
Solidago canadensis [ Canada Goldenrod ]
Sophora tetraptera [ Kowhai ]
Sorbaria sorbifolia [ Ural False Spirea ]
Sorbus aria [ Whitebeam ]
Sorbus aucuparia [ European Mountain Ash ]
Sorbus cashmiriana [ Kashmir Rowan Tree ]
Sorbus decora [ Rowan ]
Sorbus thibetica [ Tibetan Whitebeam ]
Sparaxis tricolor [ Harlequin Flower ]
Sprekelia formosissima [ Aztec Lily; Jacobean Lily ]
Sphaeralcea munroana [ Munron’s Globe Mallow ]
Spiraea arguta [ Bridal Wreath ]
Spiraea japonica [ Japanese Meadowsweet ]
Spiraea nipponica [ Nippon Spirea ]
Stachys byzantina [ Lamb’s Ears ]
Stachys officinalis [ Bishop’s Wort; Wood Betony ]
Sternbergia lutea [ Winter Daffodil; Fall Daffodil ]
Stipa tenuissima [ Feather Grass ]
Strobilanthes atropurpureus [ Strobilanthes ]
Sutera cordata [ Bacopa ]
Symphoricarpos albus [ Common Snowberry ]
Symphoricarpos x chenaultii [ Chenault Coralberry ]
Symphytum ibericum [ Iberian Comfrey ]
Symphytum officinale [ Common Comfrey ]
Syringa sweginzowii [ Chengtu Lilac ]
Syringa vulgaris [ Common Lilac ]
Syringa x prestoniae [ Preston Lilac ]
…
[ T ]
Tagetes sp. [ Afro-French Marigold ]
Tagetes tenuifolia [ Signet Marigold ]
Tanacetum parthenium [ Feverfew ]
Taxodium distichum [ Swamp Cypress]
Taxus baccata [ Common Yew ]
Telopea speciosissima [ Common Waratah ]
Thalictrum delavayi [ Meadow Rue ]
Thermopsis rhombifolia [ Mountain Goldenbanner ]
Thuja occidentalis [ Eastern Arborvitae; Northern Whitecedar ]
Thuja plicata [ Western Red Cedar ]
Thujopsis dolabrata [ Hiba ]
Thunbergia alata [ Black-eyed Susan Vine ]
Tibouchina urvilleana [ Princess Flower ]
Tilia henryana [ Henry’s Lime ]
Tithonia rotundifolia [ Mexican Sunflower ]
Trachelospermum jasminoides [ Confederate Jasmine; Star Jasmine ]
Trachycarpus fortunei [ Chusan Palm ]
Trachymene coerulea [ Blue Lace Flower ]
Trachystemon orientalis [ Abraham-Isaac-Jacob ]
Tradescantia pallida [ Purple Heart ]
Tradescantia spathacea [ Moses-in-the-Cradle ]
Tradescantia x andersoniana [ Spiderwort ]
Tricyrtis hirta [ Toad Lily ]
Trifolium incarnatum [ Crimson Clover ]
Triteleia laxa [ Grassnut ]
Tritonia disticha [ Tritonia ]
Trollius chinensis [ Bunge; Bee Balm ]
Trollius stenopetalus [ Globeflower ]
Trollius x cultorum [ Garden Globeflower ]
Tropaeolum majus [ Nasturtium ]
Tropaeolum peregrinum [ Canary creeper; Nasturtium ]
Tropaeolum speciosum [ Flame Nasturtium; Scottish Flame Flower ]
Tsuga heterophylla [ Western Hemlock ]
Tulbaghia violaceae [ Wild Garlic; Pink Agapanthus ]
Tulipa saxatilis [ Cliff Tulip ]
Tulipa sp. [ Tulip ]
Tulipa tarda [ Tulip ]
…
