Thornless Blackberry, Trailing Blackberry
Rubus 'Black Jack'

Category
Edible Fruits and Nuts

Water Requirements
Average Water Needs; Water regularly; do not overwater

Sun Exposure
Full Sun

Foliage
Deciduous

Foliage Color

Height
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)

Spacing
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)

Hardiness
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)

Where to Grow

Danger
Plant has spines or sharp edges; use extreme caution when handling

Bloom Color
White/Near White

Bloom Characteristics

Bloom Size

Bloom Time
Mid Spring

Other details

Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)

Patent Information
Patented

Propagation Methods
By dividing the rootball
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From herbaceous stem cuttings

Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed