Podocarpus macrophyllus var. maki
Podocarpus parlorei
Polystichum (species
Poncirus trifoliata 'Variegatus'
Poncirus trifoliata var. montrosa 'Flying Dragon'
Populus alba 'Richardii'
Populus x canadensis 'Robusta'
Protea 'Sylvia'
Protea cynaroides 'Mini King'
Prunus c. 'Krauter Vesuvius'
Prunus c. 'Purple Pony'
Prunus ilicifolia
Prunus lusitanica
Prunus lusitanica
Prunus lusitanica
Pseudocydonia sinensis
Pseudocydonia sinensis
Pseudotsuga menziesii (cultivar unknown)
Pseudotsuga menziesii (cultivar unknown)
Punica granatum 'Chico'
Punica granatum 'Foothill Early'
Punica granatum 'Legrellii' (Madame LaGrelle)
Puya berteroniana
Puya coerulea
Puya coerulea var coerulea
Puya floccosa x flaveriens
Puya mirabilis
Pyrus (ornamental)
Pyrus (ornamental)
Pyrus (ornamental)
Quercus agrifolia
Quercus agrifolia
Quercus cerris
Quercus cerris 'Areo Marmorata'
Quercus dentata "Pinnatifida'
Quercus douglasii 'Dexter's Blue'
Quercus emoryi
Quercus hypoleucoides
Quercus lobata 'Dexter's Gold'
Quercus oblongifolia
Quercus robur 'Argenteomarginata'
Quercus robur 'Butterbee'
Quercus robur 'Furst Schwarzenburg'
Quercus robur 'General Pulaski'
Quercus robur 'Pectinata'
Quercus rubra 'Greg's Variegated'
Quercus rysophylla
Quercus suber
Quercus suber
Rhamnus alaternus
Rhamnus alaternus 'John Edwards'
Rhamnus californica 'Eve Case'
Rhamnus californica 'Eve Case'
Rhamnus californica 'Mound San Bruno'
Rhamnus californica 'Mound San Bruno'
Rhamnus californica 'Mound San Bruno'
Rhamnus californica 'Mound San Bruno'
Rhamnus californica 'Mound San Bruno'
Rhamnus tomentelia 'Hayfork Strain'
Rhamnus tomentella 'Hayfork Round'
Rhaphiolepis umbellata 'Minor'
Rhapis excelsa
Rhipsalis saxicola
Rhodanthemum hosmariense
Rhodocoma capensis
Rhododendron 'Seta'
Rhus typhina 'Tiger Eyes'
Rhus typhina 'Tiger Eyes'
Robinia pseudoacacia 'Frisia'
Robinia pseudoacacia 'Karolina Zamoyska'
Robinia pseudoacacia 'Lace Lady'
Robinia pseudoacacia 'Lace Lady'
Robinia pseudoacacia 'Lace Lady'
Rosa 'Altissimo'
Rosa 'Anne Harkness'
Rosa 'Autumn Sunset'
Rosa 'Carpet Red'
Rosa 'Clair Matin'
Rosa 'Darlow's Enigma'
Rosa 'Eureka'