Buy 6 qualifying potted plants and receive free standard shipping. Qualifying quantities are calculated within the Potted Trees shipping group. See the shipping policy for details. This Thornless Boysenberry is a trailing blackberry–red raspberry hybrid with large maroon fruit and an aromatic sweet-tart flavor. The fruit works well fresh when fully ripe and in preserves, pies, sauces, freezing, and baking. Plant form: One potted boysenberry plant Growth habit: Trailing, summer-bearing floricane type Thorns: Sold as a thornless selection; thornless Boysen clones can occasionally produce thorny canes USDA zones: 6–9 Chill requirement: Approximately 300–500 hours Pollination: Self-fruitful; flowers still depend on pollinator activity for good fruit development Sun: Full sun Spacing: About 3–5 feet between plants Harvest: Typically early to midsummer; timing varies by region Training and care Trailing canes require a trellis. Plant in fertile, well-drained soil, irrigate deeply enough to keep the root zone evenly moist, and separate new primocanes from fruiting floricanes as they grow. Remove spent floricanes after harvest and train the new canes for the following season. Choose a protected site where winter cold or drying winds threaten trailing berries. Explore cane berries Browse all berry plants and read our cane berry growing guide.
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