Botanical Name: Rubus ursinus var. loganobaccus inermis 'Boysen'
Height: 6 - 8 feet.
Spacing: 3 - 6 feet.
Depth: Soak roots 2 - 6 hours before planting; plant so stain on the trunk is at the same level as previously planted.
Sun/Shade: Full sun.
Yield: 4 - 6 quarts at maturity.
Blooms: Mid to late Spring.
Soil Requirements: Well-drained, moist soil.
Growth Rate: Slow while establishing.
Size: 2 - 2.5 inches.
Comments: Self- pollinating. Very large, almost seedless juicy sweet dark-maroon colored berries. Less vigorous with lower yields than regular boysenberries. More flavor than blackberries. Easy to transplant. Long ripening season, almost two months. Harvest when they drop from the vine at the slightest touch. Fruit does not keep well. Use immediately. Thornlesws canes. Average bearing age is two years. Average yield is 4 - 6 quarts. Produces fruit in mid-Summer.
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