Acer pensylvanicum ‘Erythrocladum’ This small tree has pink- and gold-tinged bark with chalky striations. The young shoots are bright coral-pink and can be encouraged by pruning every three to four years. Autumn leaf colour is a bonus. 7m. RHS H6, USDA 3a-8b. Rubus cockburnianus ‘Goldenvale’ A showy bramble with bright, golden-yellow, fern-like leaves that fall to reveal chalky white sprawling winter stems. Small purplish flowers develop into black, inedible fruits. 90cm. AGM. RHS H6, USDA 4a-8b. Rubus biflorus A suckering shrub with upright, prickly stems covered in white bloom. Left unpruned it makes an impenetrable thicket, so annual pruning to ground level is the best practice. 3m. AGM. RHS H6, USDA 4a-8b. Corylus avellana ‘Contorta’ The corkscrew hazel has softly shining, twisted and contorted, brown branches and twigs hung with long, golden-yellow catkins in late winter. No pruning is necessary. 2.4m. AGM. RHS H6, USDA 3a-9b.