Columbia Giant Blackberry is a vigorous cultivar bred for serious fruit production, delivering deep purple, glossy berries that pack exceptional sweetness and a complex flavor profile. These plants mature to 60 to 72 inches tall and thrive in full sun with moderate water, making them responsive to care without demanding constant attention. Cultivated for centuries, blackberries have earned their place in home gardens through reliable productivity and ease of growth, and this variety channels that heritage into abundant harvests of fruit loaded with antioxidants, bioflavonoids, and vitamin C.
3
Full Sun
Moderate
4-9
72in H x ?in W
—
High
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Columbia Giant Blackberries produce plump, fully black fruit so sweet and tasty that they disappear from the harvest basket before they hit the fridge. The plants themselves are vigorous and productive, rewarding gardeners with consistent yields once established. Harvest begins when berries reach full black color and pull away easily from the cane, a satisfying moment that signals weeks of regular picking ahead as fruit ripens in succession.
Columbia Giant Blackberries excel fresh off the cane, where their firm yet plump texture and deep sweetness shine without any preparation needed. They preserve well in jams and preserves, where their high pectin content and robust flavor create rich spreads. These berries also work beautifully in desserts, from pies and cobblers to compotes and syrups, though their brief refrigerator life means using them quickly after harvest.
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Plant blackberry canes in an area receiving full sun with well-drained soil. Allow plants a few days to gradually acclimate to full sun exposure after unpacking before positioning them in their permanent location. Space plants 3 inches apart.
Harvest only fully black berries, as fruit will not continue ripening once picked from the cane. Look for berries that are plump yet firm and pull away easily with just a gentle touch, indicating complete maturity. Pick berries every few days once ripening begins, harvesting in the morning or after the heat of the day passes for best quality. Unlike raspberries, retain the center plug within the berry when harvesting. Refrigerate immediately after picking to preserve quality, though berries will keep for only a few days even under refrigeration.
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