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Red Mammoth is a highly productive summer-bearing (Floricane) variety of raspberry. It's an improvement over the prairie standard (Boyne) raspberry being sweeter, larger (rightfully named) and higher yielding.
This variety was introduced by the University of Saskatchewan, and is known for having semi-thornless canes. The berries that are formed are record-size, rich red, super sweet, and will be ready to harvest late June to mid July. Because of its high yields, versatile fruit, and semi-thornless upright canes this variety will make for easy picking. The vines will grow 6-8 ft tall, and so will require some kind of support system.
Self-pollinating. Best planted in organic, well-drained, slightly acidic, sandy loamy soil, and kept moist.
Zone 2
Growers Note:
Canes must be pruned yearly to maintain health and productiveness. In the fall (or early spring before they break dormancy) remove all two year old (brown and woody) canes. You can go further and thin out excess first year old (green) canes until you are left with approx. 7-15 cm (3-6") spacing between the remaining canes.
Allow 40-60 cm (16-24") spacing and 2.4 meter (8') minimum between rows