New Brunswick Blackberry

Rubus setosus

Native to:
Canada, Prince Edward I., United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Rosaceae
Genus:
Rubus
Species:
Rubus setosus
USDA Symbol:
RUGU

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Subshrub
Height:
60 cm
Drought Tolerance:
Low
Bloom Months:
may,jun,jul
Bloom Colors:
white, pink
Ground Cover:
Yes

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 from root crown following fire. Colonizes disturbed areas post-burn.

Propagation & Germination

Stratification:
Warm then cold/moist stratification (double dormancy) — 90–120 days
Scarification:
Seed coat scarification required before sowing
Germination Time:
30–90 days
Notes:
Seeds exhibit double dormancy; warm stratification followed by cold stratification improves germination. Scarification helps break hard seed coat.

The above propagation data sourced from Claude AI