Souris Raspberry (an improved Boyne Raspberry) vs Black Crowberry - TreeTime.ca

Souris Raspberry (an improved Boyne Raspberry) vs Black Crowberry

Empetrum nigrum

Rubus x Souris

CUSTOM GROW

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Black Crowberry
Souris Raspberry (an improved Boyne Raspberry)

Black Crowberry is a native evergreen shrub that forms low, spreading mats. It has unique foliage that spirals around the stem, and small dark berries, giving it visual appeal. The berries are edible, but can be acidic, so they are not generally eaten fresh. In colder climates, the berries develop a sweet-tart flavor and are often dried or used in desserts, jams, and jellies.

This hardy shrub provides food for birds and mammals, while its flowers attract pollinators such as bees. It also serves as a host plant for certain butterflies and moths. Together, these roles make it a key contributor to the health of tundra and boreal ecosystems.

In Newfoundland and Labrador, the berries are known locally as ‘blackberries’ and are enjoyed in jams, jellies, and traditional baked goods such as buns and puddings. In Scandinavia, they continue to be used in liqueurs, wines, and juices.

Souris is an improved version of Boyne, the classic prairie raspberry. It is planted all across Canada and is extremely robust. Where other raspberry cultivars rely on unique selling points and specializations, Souris is just generally a great raspberry.

Souris is cold hardy and resistant to disease and spider mites. Its berries are deliciously sweet and tart while colourful, great for U-pick operations, fresh eating, or using in products such as jams and pies. They can be a bit softer than other raspberry varieties.

The Souris Raspberry is a fast-growing floricane. This means that raspberries will not grow on canes the year they first grow. The mature canes they do grow on, however, produce more berries than primocane varieties.

Black Crowberry Quick Facts

Souris Raspberry (an improved Boyne Raspberry) Quick Facts

Zone: 3a
Zone: 2a
Height: 0.2 m (0.5 ft)
Height: 2.1 m (7 ft)
Spread: 0.4 m (1.3 ft)
Spread: 1.2 m (4 ft)
Light: partial shade, full sun
Light: full sun
Moisture: any
Moisture: normal, wet
Growth rate: slow
Growth rate: fast
Life span: medium
Life span: short
Growth form: low growing, matt-forming
Spreading: rhizomes - medium, seeds - low
Suckering: high


Foliage: evergreen needle-like leaves
Flowers: pink-red, very small
Bloom time: late spring to early summer
Berries: purplish-black, edible
Berries: red raspberries
Flavor: bland, slightly bitter
Harvest: late summer to fall
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, NU
Other Names: crakeberry, curlewberry, heathberry, northern crowberry