Black Satin Hardy Floricane Thornless , Zones 4-7, 1.5 yo nice tissue cultured plant Zones 4-7

Black Satin Floricane Thornless( Thornfree x Darrow ), semi-erect,  was released in 1974 in Illinois. The late ripening fruit  has excellent quality and good firmness( good machine harvested product ),excellent  berries are large with good flavor. Vigorous canes are semi-erect and HARDIER than the other thornless cultivars! Flowers have beautiful lavender color. The most successful thornless blackberry in the North. Zones 4-7. 1.5 yo tissue cultured plant.