Rubus ulmifolius aka Blackberry Abraham's Bush Holy Bramble Elm-Leaved Bramble Thornless Blackberry Tolerance Sun Tolerance Medium High Water Tolerance Medium Stats Perennial Vine Shrub Height 120.00 in 168.00 in Spread 96.00 in 120.00 in Zone Range 4A 7B Ph Range 6.00 8.00 Propagation Propagation Method Sowing Cutting Layering Division Bloom Month April May June July August September Bloom Size 0.20 in 0.50 in Flower Color White Pink