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Boysenberry 'Thornless Boysenberry'

Rubusursinus

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Family

Rosaceae (ro-ZAY-see-ee)

Info

Genus

Rubus (ROO-bus)

Info

Species

ursinus (ur-SEE-nus)

Info

Synonym

Sun Exposure

Full Sun

Sun to Partial Shade

Foliage

Grown for foliage

Herbaceous

Smooth

Height

36-48 in. (90-120 cm)

4-6 ft. (1.2-1.8 m)

Spacing

18-24 in. (45-60 cm)

24-36 in. (60-90 cm)

Hardiness

USDA Zone 5a: to -28.8 °C (-20 °F)

USDA Zone 5b: to -26.1 °C (-15 °F)

USDA Zone 6a: to -23.3 °C (-10 °F)

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)

Danger

N/A

Bloom Color

White/Near White

Bloom Time

Late Winter/Early Spring

Mid Spring

Late Spring/Early Summer

Other Details

Category

Biennials

Edible Fruits and Nuts

Shrubs

Vines and Climbers

Water Requirements

Requires consistently moist soil; do not let dry out between waterings

Foliage Color

Blue-Green

Where to Grow

Can be grown as an annual

Bloom Characteristics

This plant is attractive to bees, butterflies and/or birds

Bloom Size

Unknown - Tell us

Other details

Unknown - Tell us

Soil pH requirements

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information

Unknown - Tell us

Propagation Methods

From herbaceous stem cuttings

From woody stem cuttings

From softwood cuttings

From semi-hardwood cuttings

From hardwood cuttings

From seed; direct sow outdoors in fall

From seed; winter sow in vented containers, coldframe or unheated greenhouse

From seed; stratify if sowing indoors

From seed; sow indoors before last frost

From seed; direct sow after last frost

By budding

By simple layering

By tip layering

By serpentine layering

By stooling or mound layering

Seed Collecting

Remove fleshy coating on seeds before storing

Allow unblemished fruit to ripen; clean and dry seeds

Unblemished fruit must be significantly overripe before harvesting seed; clean and dry seeds

Ferment seeds before storing

Properly cleaned, seed can be successfully stored

Regional

This plant is said to grow outdoors in the following regions:

Tustin, California

Binghamton, New York

Brownsville, Oregon

Needville, Texas

Marysville, Washington

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12 members have or want this plant for trade

Gardener's Notes:

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Farmerdill

Augusta, GA (Zone 8a) | November 2006 | neutral

From Just Fruits and Exotics: "Best jam-making berry around. Boysenberries are a flavor cross of raspberry and blackberry. Great flavor, ...Read More

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Boysenberry 'Thornless Boysenberry'

Rubusursinus

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