Chester Thornless is a very vigorous, thornless, large fruited, late ripening blackberry variety from United States. Cross was made in 1968. This is one of the most popular blackberry variety in the world. It was recommended as a replacement for Thornfree cultivar.
Canes are semi-erect after the first year recumbent growth. Canes length typically achieves 3-4 m and needs trellis support. Harvest period continues from the end of July to the end of September. Yields of Chester Thornless vary with production area, up to 31 kg/plant from healthy plant. Taste and flavor are depend on local growing conditions and weather. In different regions with similar cultivation methods taste and flavor vary sufficiently. Mean mass of berry averages 5 g, seeds are relatively small. Berries have very intense black color and are firm. Winter hardiness is up to minus 18.
Canes are semi-erect after the first year recumbent growth. Canes length typically achieves 3-4 m and needs trellis support. Harvest period continues from the end of July to the end of September. Yields of Chester Thornless vary with production area, up to 31 kg/plant from healthy plant. Taste and flavor are depend on local growing conditions and weather. In different regions with similar cultivation methods taste and flavor vary sufficiently. Mean mass of berry averages 5 g, seeds are relatively small. Berries have very intense black color and are firm. Winter hardiness is up to minus 18.