Chester

• A semi-erect blackberry developed by the USDA-ARS in Illinois and Maryland from a cross between a breeding selection and 'Thornfree'
• Medium (~5g) sized fruit; deep black color; round shape; medium number of drupelets per fruit; large size seeds;
• Good flavor but very different and less aromatic than trailing blackberry (i.e. 'Marion')
• Thornless; very high yielding
• Late ripening season; typically begins in mid-August and can go until frost.

Kotata

• From a cross of two USDA selections; grandparents include Boysenberry, two wild Northwest blackberries and an eastern blackberry.
• Medium to large (6-7g) fruit; deep black color; medium seed.
• Fresh season is typically July 1 - July 24.

Loganberry

• A cross between blackberry and red raspberry.
• Commonly used in pies and wines. Has unique, tart flavor.
• Medium size (5.0g), deep red, medium seed.
• Fresh season is typically June 20 - July 10.

Silvan

• A trailing blackberry from a cross of ORUS 742 x Marion; cross was made by G.F. Waldo with USDA-ARS in Corvallis who sent the seed to Australia (Victoria) where the original selection and development took place.
• Generally similar to 'Marion' in growth habit, yield and fruit quality.
• High yields produced on very vigorous, thorny plant
• Medium-large (6.2 g) fruit, larger than 'Marion'; purple-black color; excellent flavor; excellent processing characteristics. Fresh fruit are not as firm as 'Marion'
• Early ripening (2-6 days before 'Marion') typically beginning in late June and extending until about the end of July.
• Growers report greater winter hardiness than 'Marion'

Waldo

• From a cross of two USDA selections, one grandparent is Marion.
• Medium to large (6-7g) fruit; deep black color; very uniform conic shape; high number of drupelets per fruit; medium size seeds.
• Thornless; easier on workers and eliminates thorn contaminants concerns.
• Late ripening; fresh season is typically July 15 to August 10.