Octopus Plant: actinophylla (spp.) Octopus Tree (spp.)
Oregon Grape (spp.) Oregon Holly Grape (spp.)
Oregon Holly (spp.) Oriental Cherry 'Kwanzan'
Orris Root: germanica florentina Pachysandra (spp.)
Pachysandra, Japanese (spp.) Painted Nettle (spp.)
Palm, Needle (spp.) Palm, St. Peter's (spp.)
Pansy (spp.) Parlor Ivy Philodendron
Peony, Common Garden (spp.) Periwinkle, Common (spp.)
Petunia, Garden (spp.) Philodendron, Heart Leaf
Philodendron, Parlor Ivy Pieris, Japanese (spp.)
Pin Oak Pine, Buddhist (spp.)
Pine, Eastern White (spp.) Pine, Mountain (spp.)
Pine, Mugo (spp.) Pine, Scotch (spp.)
Pine, Scots (spp.) Pine, White (spp.)
Planetree, London (spp.) Podocarpus, Chinese (spp.)
Poplar, Tulip (spp.) Poplar, Yellow (spp.)
Potentilla (spp.) Pothos Ivy (spp.)
Purple Laurel (spp.) Pyracantha (spp.)
Queensland Umbrella Tree (spp.) Quince, Chinese (spp.)
Quince, Flowering (spp.) Red Birch (spp.)
Red Gum (spp.) Red Maple (spp.)
Red Oak Red Sweet Gum (spp.)
Redbud (spp.) Redbud, Eastern (spp.)
Rhododendron, Catawba (spp.) River Birch (spp.)
Rock Maple (spp.) Rosebay Catawba (spp.)
Rosebay Laurel (spp.) Rosebay, Mountian (spp.)
Rubber Plant, Small-leaved (spp.) Rubber Tree 'Decora'
Rubber Tree, India 'Decora' 'Rudolph Roehrs' Spotted Dumbcane
Sacred Bamboo (spp.) Sage, Meadow 'May Night'
Salvia 'May Night' Saucer Magnolia: soulangianahybrid (spp.)
Schefflera (spp.) Scotch Pine (spp.)
Scots Pine (spp.) Sedum: spurium (spp.)
Serviceberry, common Serviceberry: arborea, Downy
'Shademaster' Thornless Honey Locust Shasta Daisy (spp.)
Shrubby Cinquefoil (spp.) Siberian Arborvitae (spp.)
Small-leaved Lime (spp.) Small-leaved Rubber Plant (spp.)
Snapdragon (spp.) Sour Gum (spp.)
Southern Magnolia (spp.) Southern Yew (spp.)
Spirea, Bumalda 'Crispii' Spirea, False (spp.)
Spotted Dumbcane 'Rudolph Roehrs' Spruce, Blue (spp.)
Spruce, Colorado (spp.) Spruce, Norway (spp.)
St. Peter's Palm (spp.) Stepmother's Flower (spp.)
Stonecrop, Two Row (spp.) Sugar Maple (spp.)
Sulphur Buckwheat (spp.) Swamp Maple (spp.)
Swamp Oak Sweet Alyssum (spp.)
Sweet Gum (spp.) Sweet Gum, American (spp.)
Sweet Gum, Red (spp.) Sweetgum (spp.)
Sweetgum, American (spp.) Taro Vine (spp.)
Thornless Honey Locust 'Shademaster' Tree Yucca (spp.)
Tropic Laurel (spp.) Tuberous Begonia (spp.)