Crop Rotation Group
Well-drained soil enriched with plenty of compost. These long-lived brambles prefer a soil pH around 6.0.
Full sun to partial shade, which is beneficial in hot summer areas.
Drench with a liquid organic fertilizer when plants show rapid new growth in spring. Keep the root zone mulched to retain moisture.
Single Plants: 90cm (2' 11") each way (minimum)
Rows: 90cm (2' 11") with 90cm (2' 11") row gap (minimum)
Sow and Plant
Set out purchased plants in mid-spring, or root stem tip cuttings from an established plant. Protect young plants from nibbling by deer with a wire cage. Like other brambles, boysenberries grow new stems which fruit in their second year and then die. Boysenberries are a complex cross between upright raspberries and trailing blackberries. A trellis helps control the growth of the large, vigorous plants, and makes the fruit easier to pick.
Our Garden Planner can produce a personalized calendar of when to sow, plant and harvest for your area.
Use a trellis to so you can train plants into a dense, head-high hedge.
Boysenberries are ripe when the fruits turn from red to a deep red-black color. Harvest in the morning, while the fruit is cool, and refrigerate immediately. Boysenberries can be frozen or made into delicious jams and desserts.
Several fungal diseases can infect boysenberries. Septoria leaf spot is not uncommon. It causes numerous spots to form on leaves, and spreads in warm, wet weather.
Planting and Harvesting Calendar
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Pests which Affect Boysenberry