Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Rosaceae

Genus:

Rubus

Species:

Rubus × biformispinus

USDA Symbol:

RUSE4

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Subshrub

Height:

150 cm

Light Requirements:

Full Sun

Drought Tolerance:

Medium

Bloom Months:

may,jun

Bloom Colors:

white

Keystone Species Ranking

Caterpillar Keystone:

★★★★★ Butterfly & moth species supported by this genus (NWF)

Garden & Ecology Notes

Wildlife Value:

birds, small mammals

Fire Ecology:

Fire adapted — tolerates or benefits from fire

Fire Notes:

Resprouts vigorously from root crown following fire disturbance.

Propagation & Germination

Stratification:

Cold/moist stratification required — 90–120 days

Germination Time:

30–90 days

Notes:

Seeds have double dormancy and may take up to two years to germinate. Fresh seed sown in fall may germinate the following spring.