Propagation
Layering during autumn.
Hardwood cuttings or stem cuttings about 300 mm (1 ft) long and with three buds, store in damp sand or sawdust to callus during winter. Plant out during spring with the top bud level with soil surface.
Culture
The home gardener should mulch with straw or manure to add nitrates to the soil and the ornamental vine is not normally attacked by insects.
For fruit production it should be remember that the fruit is produced on shoots of the present growth, which grew from wood of last season's growth. This is called a cane. So when pruning the vine limit numbers of good cains with a few buds.
Train with a main vertical stem with horizontal branching that is trained and tied on to a wire frame. The plants produce fruit on the current season`s growth and should be pruned during early winter. Avoid pruning during late winter to spring as the plants will bleed sap causing the plant to loose vigour.
Young plants take up to three years to produce fruit and when pruning be careful not to cut to close to the downward facing bud.
Botanic information
Leaf: The cordate to ovate dull green leaves are palmately lobed with 3 to 5 lobes and turn red to crimson during autumn. The leaves are some times tomentose on the underside.
Flower: The cyathiform flowers have 5-petals that are united at the apex and appear in a narrow paniclewith new growth from spring to early summer.
Fruit: The fleshy green to purple berry is non-palatable in an ornamental grape. Cultivars produce excellent fruit for eating and wine production.