A unique cross of Gooseberry and Black Currant, Jostaberry is the most vigorous of all our Currant varieties. A very disease resistant and easy to grow small shrub, Jostaberry produces very large, jet black, sweet-tart fruit, high in Vitamin C and good for fresh eating and excellent for jams and jellies.
Latin Name: Ribes nigrum x uva-crispa
Site and Soil: Currants like 1/2 day to full sun and well-drained soil.
Pollination Requirements: Self-fertile.
Hardiness: Hardy to minus 40° F.
Bearing Age: 1-2 years after planting
Size at Maturity: 3-5 ft. in height
Bloom Time: March-April
Ripening Time: July
Yield: 10-20 lbs.
Pests & Diseases: Not bothered by significant pest or disease problems in our region. White Pine Blister Rust can be a problem for Black Currants in certain eastern and Midwestern states. Check with your extension service for details.
USDA Zone: 3
Sunset Western Zone: A1-A3, 1-6, 15-17
Sunset Northeast Zone: 34-43