Grape Dornfelder (Vitis) Boskoop Glory Beautiful deep-coloured grapes that look stunning climbing over a pergola. Bred in Germany the Grape Dornfelder is an early ripening red grape that adds body to flavourless red wines. This variety of Grape produces good-sized, blue-black grapes which ripen well in the UK climate. Good disease resistant and easy to maintain with large leaves and good autumn colour. Grapevines make a beautiful garden feature trained to climb over a pergola. Height of cordon trained vine: 1.8m (6\'). The spread of cordon trained vine: 1.5m (5\'). Untrained plants may reach up to 8m (26\').