Silvan is a trailing blackberry from a cross between a Marion and ORUS 742 and has a growth habit, yield and fruit that is also similar to a Marion. However, it has been said to be hardier than a Marion. The Fruit on the Silvan Blackberry is a purple black with excellent flavor and great for processing. The fruit is not quite as firm as Marion fruit.
Latin Name: Rubus hybrid
Site and Soil: Blackberries like 1/2 day to full sun and well-drained soil.
Pollination Requirements: Blackberries are self-fertile.
Hardiness: Blackberries are hardy to minus 15º F.
Bearing Age: 1-2 years after planting.
Size at Maturity: 6 ft. in height on trellis.
Bloom Time: April
Ripening Time: June-July
Yield: 10-15 lbs.
Pests & Diseases: Blackberries do not suffer from significant pest or disease problems.
USDA Zone: 6
Sunset Western Zone: 2-24
Sunset Northeast Zone: 31, 32, 34-41