| Ochna
serrulata |
| Ocimum
basilicum- herb, Sweet Basil |
| Ocimum
basilicum purpurascens- herb, Basil |
| Ocimum
citriodora- herb, Lemon-scented Basil |
| Oemleria
cerasiformis- z6,10-15',Indian Plum / Osoberry |
| Oenantha
javanica- variegated Flamingo Plant aquatic; |
| Oenanthe
sarmentosa- 10-30",wet,toothed,Water Parsley; |
| Oenanthe
sarmentosa- Water Parsley; |
| Oenocarpus
bacaba- Turu Palm |
| Oenothera
berlandieri (speciosa)- Mexican Primrose; |
| Oenothera
berlandieri 'Siskiyou' pale pink,7",Primrose; |
| Oenothera
berlandieri 'Woodside White' Primrose; |
| Oenothera
biennis- herb, Evening Primrose; |
| Oenothera
caespitosa- White Evening Primrose; |
| Oenothera
'Cold Creek' gold, 1'h; |
| Oenothera
'Fire Works' canary yellow, 1'h; |
| Oenothera
fremontii 'Lemon Silver' Primrose; |
| Oenothera
fruiticosa youngii- Sundrops Primrose; |
| Oenothera
hookerii- z3,2-3'h,yellow,Hooker's Primrose; |
| Oenothera
lamarckiana- evening scented Primrose; |
| Oenothera
macrocarpa- Yellow Evening Primrose; |
| Oenothera
missouriensis- z4-8,yellow,Evening Primrose; |
| Oenothera
perennis- Primrose; |
| Oenothera
speciosa- pink evening blooming Primrose; |
| Oenothera
speciosa- Showy Primrose; |
| Oenothera
speciosa 'Siskiyou' z4-8,Evening Primrose; |
| Oenothera
stubbei- Baja/Chihuahan Primrose; |
| Oenothera
tetragona- 1-3',yellow,Four Angled Sundrops; |
| Old
Man of Mexico Cactus |
| Old
Man of the Andes Cactus |
| Old
Woman of Mexico Cactus |
| Olea
'Bird Hill' Olive |
| Olea
europaea- z9,30'hw,fruit,1-2"leaf,European Olive. |
| Olea
europaea 'Bonita' z8,Bonita Olive |
| Olea
europaea 'Fruitless' z9-11,30'hw,fruitless Olive |
| Olea
europaea 'Little Ollie/Olie/Olle' dwf Montra Olive |
| Olea
europaea 'Majestic Beauty' z9-11,20-25',airy,Olive |
| Olea
europaea 'Manzanillo' Olive |
| Olea
europaea 'Mission' Olive |
| Olea
europaea 'Swan Hill' fruitless 30'+h, Olive |
| Olea
europaea 'Wilsonii'z9,25-30'fruitless,Wilson Olive |
| Olneya
tesota- Desert Ironwood |
| Omithogulum
umbellatum- Star of Bethleham |
| Omphalodes
cappadocica 'Cherry Ingram' Navelwort; |
| Onoclea
sensibilis- z2-10,1-3',dec,creep,Sensitive Fern |
| Ophio.pl.'EbonyKn/Arabicus/Nigrescens'Black
Mondo Grass |
| Ophiopogon
intermed.'Argenteomarginatus' 2' Aztec Grass |
| Ophiopogon
intermedius- 2'h, Aztec Grass |
| Ophiopogon
jaburan- blue fruit,white,LaTigra Liriope |
| Ophiopogon
jaburan vittata-15" variegated Mondo Grass |
| Ophiopogon
jaburan vittatus 'Aztec Grass' Mondo Grass |
| Ophiopogon
japonicus- 8",tufts,Monkey/Aztec/Mondo Grass |
| Ophiopogon
japonicus 'Comet' 9",silvery,Mondo Grass |
| Ophiopogon
japonicus 'Compactus' dwarf Mondo Grass |
| Ophiopogon
japonicus 'Gyoko Ryu' 1-3" Mondo Grass |
| Ophiopogon
japonicus 'Kijimafukiduma'varieg.Mondo Grass |
| Ophiopogon
japonicus Kioto' 4" Monkey/Aztec/Mondo Grass |
| Ophiopogon
japonicus 'Nana' 4" dwarf / mini Mondo Grass |
| Ophiopogon
japonicus 'Nigra' black Mondo Grass |
| Ophiopogon
japonicus 'Pam Harper'9"gold vrg Mondo Grass |
| Ophiopogon
japonicus 'Silver Mist' vrg,6-8",Mondo Grass |
| Ophiopogon
japonicus 'Variegatus' Mondo Grass |
| Ophiopogon
japonicus 'Vittatus' Variegated Mondo Grass |
| Oplopanax
horridus- z4-9,tree/shrub,Devil's Club |
| Opunita
bigelovii- Teddy Bear Cholla Cactus |
| Opunita
splendens- yellow spineless Prickly Pear Cactus |
| Opuntia-
per nursry, Cactus |
| Opuntia-
Thornless Prickly Pear Cactus |
| Opuntia
acanthocarpa- Buckhorn Cholla Cactus |
| Opuntia
arbuscula- Pencil Cholla Cactus |
| Opuntia
basilariis X violecea- hybrid Cactus |
| Opuntia
basilaris- Beavertail Prickly Pear Cactus |
| Opuntia
bigloveii- Teddy Bear Cholla Cactus |
| Opuntia
chenile- Texas Red-Hair Prickly Cactus |
| Opuntia
diademata 'Inermis' Spruce Cone Cactus |
| Opuntia
diademata- Papyracantha Cactus |
| Opuntia
echinocarpa- Gold Cholla Cactus |
| Opuntia
ellisiana- Smooth Prickly Pear Cactus |
| Opuntia
engelmannii- Engelmann's Prickly Pear Cactus |
| Opuntia
engelmannii texana- yellow Prickly Pear Cactus |
| Opuntia
erinacea- Indian Fig Prickly Pear Cactus |
| Opuntia
ficus indica- Indian Fig Cactus |
| Opuntia
fulgida- Chain Fruit Cholla Cactus |
| Opuntia
fulgida mammillata- Jumping Cholla Cactus |
| Opuntia
fulgida 'Monstrosa' Boxing Glove Cholla Cactus |
| Opuntia
humifusa- z4,4-10",grcvr,Prickly Pear Cactus |
| Opuntia
imbricata- Staghorn Cholla Cactus |
| Opuntia
inermis- Pine Cone Cactus |
| Opuntia
lelptocaulis- Christmas Cholla Cactus |
| Opuntia
lindheimeri- Cow Tongue Prickly Pear Cactus |
| Opuntia
linguaformus- Cow's Tongue Cactus |
| Opuntia
macrocentra- Ling Spined Prickly Pear Cactus |
| Opuntia
microdasys- Yellow Bunny Ears Cactus |
| Opuntia
microdssys rufispina- Red Bunny Ears Cactus |
| Opuntia
paraguayensis- Orange Tuna Cactus |
| Opuntia
phaecantha- Spineless Prickly Pear Cactus |
| Opuntia
polyacantha- Grizzly Bear/Plains Cactus |
| Opuntia
robusta- Giant Prickly Pear Cactus |
| Opuntia
rufida- Cow Blinder/Clock Face Cactus |
| Opuntia
santa-rita- Purple Prickly Pear Cactus |
| Opuntia
santa-rita 'Tubac' Prickly Pear Cactus |
| Opuntia
stenopetala- Fire Ridge Cactus |
| Opuntia
strobiliformis- Paper Spine Cactus |
| Opuntia
strobuliformus- Arizona Pine Cone Cactus |
| Opuntia
subulata- Mexican Hedge Cholla Cactus |
| Opuntia
turpinii- Pine Cone Prickly Pear Cactus |
| Opuntia
versicolor- Staghorn/Buckhorn Cholla Cactus |
| Opuntia
violacea macrocentra- Purple/Black Spine Cactus |
| Opuntia
violacea- Purple Santa Rita Cactus |
| Orbexilum
pedunculatum- 10"h grcvr. Sampson's Snakeroot |
| Orchis
spectabilis- Showy Orchis |
| Oreocereus
celsianus- Old Man Andes Cactus |
| Oreocereus
trollii- Cactus |
| Origanum
laevig. 'Herrenhausen' Marjoram/Oregano; |
| Origanum
libanoticum- Ornamental Oregano |
| Origanum
marjorana- Sweet Marjoram; |
| Origanum
onites 'Italia' 18-24",herb,Italian Oregano |
| Origanum
onites- Pot Marjoram; |
| Origanum
'Rosenkuppel' z4,15-18",pink,Oregano |
| Origanum
rotundifolium 'Kent Beauty' z7-10,pink,Oregano |
| Origanum
vulgare 'Aureum' pink,low,herb,Oregano |
| Origanum
vulgare- hardy,herb,European/Greek Oregano |
| Origanum
vulgare 'Variegata' 1'h,herb,mound,Oregano |
| Ornithogalum
umbellatum- Star of Bethlehem wildflower; |
| Orontium
aquiticum- Golden Club aquatic; |
| Orostachys
furusei- Duncecap |
| Orostachys
iwarenge- 2-3"x12",z5,succulent,Dunce Cap |
| Orostachys-
z4-6,Sedum related,rosette,per nursery |
| Orthosiphon
laboatis- Shell Bush |
| Orthosiphon
stamineus- 5'x3',whispy,Cat's Whiskers |
| Oryzopsis
hymenoides- z2,1-2'h,Indian Rice grass |
| Oscularia
deltoides- succulent |
| Osmanthus-
per nursery/ |
| Osmanthus
americanus- 15-25' open Devilwood/Wild Olive |
| Osmanthus
armatus- 8-15' sun/shade Falseholly |
| Osmanthus
armatus 'Clemson Yellow' Falseholly |
| Osmanthus
burkwoodii- 6-10' compact Falseholly |
| Osmanthus
delavayi- 6-10'hw compact Falseholly; |
| Osmanthus
fortunei 'Carl Wheeler' 20' dense Falseholly |
| Osmanthus
fortunei 'Fruitlandii' Fortune's Osmanthus |
| Osmanthus
fortunei 'San Jose' Tea Olive/Falseholly |
| Osmanthus
fortunei-15-20'Fortune's Osmanthus/Falseholly |
| Osmanthus
fragrans auranticus-orange Fragrant Tea Olive |
| Osmanthus
fragrans 'Big Leaf' Fragrant Tea Olive |
| Osmanthus
fragrans 'Cason's Orange' Fragrant Tea Olive |
| Osmanthus
fragrans 'Fudingzhu' Fragrant Tea Olive |
| Osmanthus
fragrans thun.- yellow Fragrant Tea Olive |
| Osmanthus
fragrans-False Holly,Fragrant/Sweet/Tea Olive |
| Osmanthus
heterophyllus 'Fastigiata' Tea Olive |
| Osmanthus
heterophyllus 'Goshiki' variegated Tea Olive |
| Osmanthus
heterophyllus 'Gulf Tide/Gulftide' Tea Olive |
| Osmanthus
heterophyllus 'Kembu' broad,Tea Olive |
| Osmanthus
heterophyllus 'Purpureus'hardy dark Tea Olive |
| Osmanthus
heterophyllus 'Rotundifolius' Tea Olive |
| Osmanthus
heterophyllus 'Sasaba' broad,Tea Olive |
| Osmanthus
heterophyllus ''Variegatus' Tea Olive |
| Osmanthus
heterophyllus/ilicifoliusTeaOlive/False Holly |
| Osmanthus
illicifolia |
| Osmarea/Osmaria
burkwoodii- 6',compact,evgrn,frag,white |
| Osmunda
cinnamonea- z2,2-5',bright,Cinnamon Fern |
| Osmunda
claytoniana-z2-8,2-4',clump,Interrupted Fern |
| Osmunda
regalis 'Purpurescens' z4-8,Royal Fern |
| Osmunda
regalis 'Spectabilis' z2,2-5'h,Amer.Royal Fern |
| Osmunda
regalis- z2-10,2-5'h,European Royal Fern |
| Osteospermum
fruticosum-6-12"x2-4'African/Freeway Daisy |
| Ostrya
carpinifolia-z5-9,30',round,European Hophornbeam |
| Ostrya
japonica- Japanese Hophornbeam/Ironwood |
| Ostrya
virginiana- z3b,40'American Hophornbeam/Ironwood |
| Otatea
acuminata aztecorum 'DwarfMexicanWeeping' Bamboo |
| Otatea
acuminata 'Mayan Silver' Bamboo |
| Otatea
acuminata 'Michoacan' Bamboo |
| Otatea
acuminiata-20'h,1.5"d,z9,Mexican Weeping Bamboo |
| Otatea
aztecorum- z8-11,Mexican Weeping Bamboo |
| Otatea
fimbriata- Bamboo |
| Oxalis
bowiei- 1'h,z8,2"rose pink,Shamrock; |
| Oxalis
crassipes- 1'h,mound,pink,Pink O./Shamrock; |
| Oxalis
crassipes 'Alba' 1'h, White O./Shamrock; |
| Oxalis
crassipes 'Rosea' 4-6",pink,Strawberry Shamrock; |
| Oxalis
oregana- z5-6,6-12"h,pale pink,Redwood Sorrel; |
| Oxalis
regnellii 'Triangularis' 1'x1',z8,Pink Shamrock; |
| Oxydendrum
arboreum 'Chameleon' Sourwood |
| Oxydendrum
arboreum- clump / multistemn Sourwood |
| Oxydendrum
arboreum- z5-9,30' pyramid round Sourwood |
