Plants A-Z

Ribes sp.

These many-stemmed, thornless shrubs grow to 3–5 ft. high and wide, depending on vigor and variety. Th...

Ribes speciosum

Fuchsia-flowered Gooseberry

Native near coast,from central coast of Californiasouth to Baja California. Erectto 4–8 ft. tall, 6–10...

Ribes viburnifolium

Catalina Perfume

Nativeto Catalina Island, Baja California.To 3–6 ft. tall, spreading to12 ft. wide. Wine red stems are...

Ricinus communis

Castor Bean

Bold, striking plant from Africa, Asia. Grown as an annual in all zones. Can provide tall screen or le...

Robinia neomexicana

Desert Locust

Native from California's mountains to Arizona and New Mexico, this thorny plant usually grows about 6 ...

Robinia pseudoacacia

Black Locust

Native to the eastern and central United States. Fast growth to 40 to 75 ft. tall, 30 to 60 ft. wide, ...

Robinia x ambigua

Locust

A hybrid between Robinia pseudoacacia and R. viscosa, this seldom-grown, pink-flower...

Rodgersia aesculifolia

To 6 ft. tall, 3 ft. wide. Leaves are divided like fingers of hand into five to seven tooth-edged, 10-...

Rodgersia pinnata

To 4 ft. tall, 2 1/2ft.wide. Leaves have five to nine 8-in. leaflets. Red flowers.

Rodgersia podophylla

To 5 ft. tall, 6 ft. wide. Coppery green leaves divided into five 10-in.-long...

Romneya coulteri

Matilija Poppy

California native. Spectacular plant to 6–8 ft. or taller, spreading indefinitely by rhizomes. S...

Rosa (Climbing)

Climbing rose

These are simply rose bushes that produce long, strong canes that will grow upright against a wall or ...