Photo by Melody

PlantFiles: Thornless Blackberry
Rubus fruticosus 'Black Satin'

Family: Rosaceae (ro-ZAY-see-ee) (Info)
Genus: Rubus (ROO-bus) (Info)
Species: fruticosus (froo-tih-KOH-sus) (Info)
Cultivar: Black Satin

10 members have or want this plant for trade.

Edible Fruits and Nuts

36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)

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

USDA Zone 3a: to -39.9 C (-40 F)
USDA Zone 3b: to -37.2 C (-35 F)
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
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)

Sun Exposure:
Full Sun


Bloom Color:
Pale Pink
White/Near White

Bloom Time:
Unknown - Tell us

Good Fall Color

Other details:
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings
Provides winter interest

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:

Propagation Methods:
By dividing the rootball
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From softwood cuttings
From semi-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
By grafting
By simple layering

Seed Collecting:
Remove fleshy coating on seeds before storing
Allow unblemished fruit to ripen; clean and dry seeds
Properly cleaned, seed can be successfully stored


3 positives
2 neutrals
No negatives

Gardeners' Notes:

Positive janelp_lee On Mar 22, 2015, janelp_lee from Toronto, ON (Zone 6a) wrote:

Very easy to grow and fruit!

Neutral AFL On Jun 20, 2013, AFL from El Sobrante, CA wrote:

Low-growing (~3ft), thornless.
Needs support to keep berries off the ground.
Longer blooming than my other thornless berries.
Extremely heavy bearing, small, longish tasty berries, but erratic:
1st season: 40% sunburned berries (despite partial shade)
2nd season: no canes at all (died from heavy production?)
3rd season: Voila! Still alive ~3ft primocanes
4th season: Loaded!!, no sunburn yet (still red, 06/20/13, El Sobrante, CA). Again, no evidence of canes for next year's crop.
No pest/bird damage (unlike my other berries).

Positive drfarm On Jan 31, 2011, drfarm from Palisade, CO wrote:

peacefull vally farm,in grass valley,calif is an organic farm has these plants

Positive Lodewijkp On May 31, 2008, Lodewijkp from Zwolle
Netherlands (Zone 7a) wrote:

a bramble cultivar that has been hybridized between other raspberry's.

Thornless and got bigger leaves.

Can grow up to more then 12 meter in tropical or subtropical climates but wil grow 10 meters in temperate.

Wil bear alot of fruits and somehow the insects and birds leave it alone.

Needs full sun or partial sun for fruit production

Never cut down to ground level because new shoot with spines wil emerge.

If spines do emerge cut them down


Big, Bigger ! can reach up to 8 meters in one year !
No spines!
Big leaves - wow
Alot of medium to large sized fruits !
Nice fall color
Nice glossy fruit color.
Packing compact bunches of fruits , easy to harvest.
Alot of blooms and nice bloom color.
Not a Bird and snail magnet!


Suseptible to diseases
Lice magnet if grown in shade
Don't grow it to a high wall because you will reallly need a ladder to get al the fruits.
it wil develop a crawling habit if reached maximum height of the support or wall, use recommended commercial support techniques
requires alot of pruning - council the books about growing this plant for fruits

Neutral berrygirl On Mar 6, 2007, berrygirl from Braselton, GA (Zone 7b) wrote:

This upright-growing, vigorous plant produces good crops of dark juicy berries.


This plant has been said to grow in the following regions:

Capistrano Beach, California
El Sobrante, California
La Habra, California
Chicago, Illinois
Greenup, Illinois

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