Plants A-Z

Rosa x harisonii

Harison’s Yellow Rose

Hybrid between R. foetida and R. spinosissima; very old rose that was taken westward...

Rosmarinus officinalis

Rosemary

Genus name means "dew of the sea," reflecting the plant's native habitat on seaside cliffs in the Medi...

Roystonea regia

Royal Palm

Nataive to Cuba. Grows 50 to 75 ft. high, 30 ft. wide. Trunk is swollen at base, tapering toward top, ...

Rubus deliciosus

Rocky Mountain Thimbleberry

Native toRocky Mountains in New Mexico,Colorado, and Wyoming.Graceful, arching plant to 3–5 ft. tall a...

Rubus idaeus

Red Raspberry

Red varieties are the mostcommon; yellow types aremutations of red raspberries.Expected life is about ...

Rubus rolfei

From the mountains of Taiwan. Thickly foliaged stems spread at a moderate rate to form a dense carpet ...

Rudbeckia fulgida

Initially to 3 ft. tall, 2 ft.wide; after a few years, spreads by rhizomes to form a larger clump. Bra...

Rudbeckia hirta

Gloriosa Daisy

Biennial or short-lived perennial; often grown as an annual because it often blooms the first summer f...

Rudbeckia lacinata

Thespecies can reach 10 ft. talland 4 ft. wide; it has light green,deeply lobed leaves to 4 in.long an...

Ruellia brittoniana

Mexican native naturalizedin many areas of the southernand southwestern U.S. To3 ft. high; initially 1...

Rumohra adiantiformis

Leatherleaf Fern

Native to southern hemisphere tropics and subtropics. Grows 3 ft. high and wide, spreading wider by rh...

Ruscus aculeatus

BUTCHER’S BROOM

Native fromthe Mediterranean and Blackseas to the British Isles andthe Azores. To 1–4 ft. tall, withbr...