PlantFiles: Black Raspberry, Wild Black Raspberry, Black-Cap, Thimbleberry Rubus occidentalis
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Spacing: 18-24 in. (45-60 cm) 24-36 in. (60-90 cm) 36-48 in. (90-120 cm)
Hardiness: 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: Sun to Partial Shade
Danger: Plant has spines or sharp edges; use extreme caution when handling
Bloom Color: White/Near White
Bloom Time: Mid Spring
Other details: May be a noxious weed or invasive Average Water Needs; Water regularly; do not overwater
On Oct 15, 2008, Malus2006 from Coon Rapids, MN (Zone 4a) wrote:
Zone 4 hardy for sure - they are very common in Anoka Country Minnesota in sandy soil - their fruits change from red to almost black, giving them the look of blackberries, giving them that name. They will grow in shade or sun, rooting themselves by having their top fall over and touch the ground. They fruits much better in more sun but they seem to resent being in too open an environment in the wild, prefering woodland edge and opening. Maybe they root poorly in thick grasses? Hard to tell about zone 3a - maybe they thrive in areas with more neutral or basic soil, with 3b a maybe - other raspberries species and allies like thimbleberry seem to replace them further north at least in Minnesota.
On Feb 19, 2008, GojiGirl from Newport Center, VT wrote:
these plants grow very well in the wild, i have picked large berries from these plants. i love the unique flavor of the berries, very sweet and refreshing. i think that this plant is a wonder and i have never seen the berries sold in a grocery store here.
On Nov 5, 2007, creekwalker from Benton County, MO (Zone 5a) wrote:
My home is surrounded by woods with these plants grwoing all around and I love them! The fruit is usually pretty sour, but they make great jellies, syrups, etc. They self spread, but do not seem to be terribly invasive. I wouldn't mind more of them! Great food for the animals too!