A blackberry plant with whitish canes in the winter.
Pronunciation
(ROO-bus)(kok-burn-ee-AH-nus)
Plant Type
All Plants, Shrubs Deciduous
Hardiness Zone
5-9
Sunlight
full, mostly sunny, part sun
Moisture
average
Soil & Site
average
Flowers
purple
Leaves
bright yellow, pinnate compound
Stems
reddish during growing season, become covered with white (glaucous) during cold weather, stems armored with prickles (extensions of the bark or epidermal tissue)
Roots
fibrous
Dimensions
can reach up to 5-6 feet, spreads by tip layering
Maintenance
pruning to control the spread, cut canes to t he ground each year, primocanes (first year canes) are the most ornamental
Propagation
stems bend and touch the soil and root (tip layering), these can be dug for new plants
Native Site
China
Cultivar Origin
Introduced by Ernest Wilson in 1904
Misc Facts
(syn Rubus giraldianus)
Notes & Reference
#01-Manual of Woody Landscape Plants (Michael Dirr),
#227-Lois the plant Geek (www.louistheplantgeek.com)