Plants A-Z

Ochna serrulata

Bird's-eye Bush

This South African shrub grows slowly to 4–8 ft. high and wide. Oblong leaves are leathery, fine tooth...

Ocimum basilicum

Basil

From tropical and subtropical Asia. Somewhat bushy plant to 2 ft. tall and 1 ft. wide, with green, shi...

Oemleria cerasiformis

Oso Berry

In damp woodlands and meadows in the Northwest and in parts of California, oso berry’s tiny, almond-sc...

Oenothera caespitosa

Tufted Primrose

Native to western U.S. Clump to 8–12 in. high, 2 ft. wide, with many rosettes of narrow, fuzzy gray-gr...

Oenothera macrocarpa

Ozark Sundrops

Native to south-central U.S. Grows 6 in. tall and 2 ft. wide, with narrow, lance-shaped leaves to 3 in...

Oenothera speciosa

Mexican Evening Primrose

Native to southwestern U.S. and Mexico. To 1 ft. high and 3 ft. or more wide, spreading by rhizomes. F...

Oenothera stubbei

Saltillo Evening Primrose

Native to Mexico. Evening-blooming plant that forms a dark green mat 5 in. high and 4 ft.wide; prostra...

Olea europaea

Olive

From the Mediterranean. Along with palms, citrus, and eucalyptus, olives are regional trademarks along...

Olneya tesota

Desert Ironwood

Thorny native of the Southwest’s Sonoran Desert; also found in warm-winter areas of California. ...

Omphalodes verna

Blue-Eyed Mary

Native to mountains of Europe. Forms a foliage mat 3 in. high, 3 ft. or more wide, with dark green lea...

Oncidium ornithorhynchum

In summer, many branching, 8–12-in.-high spikes carry a cloud of 1/2–1-in. pink or purplish pink, spic...

Ophiopogon jaburan

Giant Lily Turf

From Japan. Sometimes sold as Liriope gigantea. Grows 2 to 3 ft. tall, 1 to 1 1/2 ft. wide, w...