Orange Jessamine
Murraya paniculata
Native to Southeast Asia. Open habit; fast grower to 6 to 15 ft. tall and wide. Good as hedge, filler,...
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Orange Mint
Mentha x piperita citrata
Known as orange mint (crushed leaves have slight orange flavor) or bergamot mint, this plant grows to ...
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Orchid Cactus
Epiphyllum hybrid
Growers use the name “epiphyllum“ to refer to a wide range of plants“both the genus ...
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Orchid Rockrose
Cistus x purpureus
Compact grower to 4 ft. tall and wide, often shorter and wider when subjected to constant ocean winds....
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Orchid tree
Bauhinia
These flamboyant flowering trees and shrubs have a very special place in Hawaii and mild-winter areas ...
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Oregano
Origanum vulgare
Native to most of Europe and temperate Asia. Upright growth to 2 1/2 ft. tall, 2 to 3 ft. wide. Oval d...
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Oregon Ash
Fraxinus latifolia
Native to Sierra Nevada and west of the Cascades from Northern California to British Columbia. To...
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Oregon Box
Paxistima canbyi
Native to mountains of eastern U.S. Slowly makes a mat to 1 ft. high, 3 to 5 ft.wide. Narrow, dark gre...
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Oregon Boxwood
Paxistima myrtifolia
Native to the mountains of the West. Dense plant of variable habit; may be nearly prostrate or as tall...
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Oregon White Oak
Quercus garryana
Native to California, Oregon, Washington, British Columbia. Slow to moderate growth to 40 to 90 ft. ta...
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Organpipe Cactus
Stenocereus thurberi
Native to Ariazona and Mexico. Columnar cactus branching from base (also from top, if injured) to form...
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Orienpets
Lilium OT hybrids
These heavy-stemmed lilies grow 3–5 ft. tall. They tolerate a little more heat and demand less w...
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