Root pruning too? Provide support such as a trellis or arbor. Akebia quinata photograph by Leonora (Ellie) Enking. Still, the plant should be kept in place with regular pruning. Sow seed as soon as ripe in cool conditions. Prune annually to control size.Pruning time: spring after flowering. Watch Reply. Plants have attractive blooms that carry a light chocolate scent. Provide a sturdy trellis, arbor for the vine to climb on. Problems: Akebia has become a naturalized weed in the eastern United States, but has not performed the same way in the west. Cooperative Extension, which staffs local offices in all 100 counties and with the Eastern Band of Cherokee Indians. Bounces back easily from pruning. Water deeply, regularly in first growing season to establish an extensive root system; once established, water as needed to maintain evenly moist soil. judyats Chesapeake, VA Dec 29, 2007. Simply carry out any renovation or restraining pruning in late spring after flowering – or early winter. Akebia quinata produces glossy dark green oval-shaped leaves that grow in clusters of five. Mark unread; Skip to new; Mark unread Print Skip to new. how does one prune "akebia quinata"? I have an akebia in a 16" pot, and it's gotten too big for it's location, it's very bare … Coldframe being an ideal place - or in covered pan under shelter of tree or hedge. Pruning Akebia quinata. It does not require pruning other than for the above. The aromatic flowers are replaced by four inch (10 cm) fruit pods containing small black seeds that drop in the autumn / fall. Propagation of Chocolate Vine. Hardy to Zone 5, -20f to -30f. Akebia quinata NC State University and N.C. A&T State University work in tandem, along with federal, state and local governments, to form a strategic partnership called N.C. Apply fertilizer monthly to lean soils. More.