Plant Base Online (beta)
Wisteria floribunda 'Violecea Plena'
common name: Japanese Wisteria
synonyms: Wisteria floribunda 'Double Black Dragon', Wisteria floribunda 'Yae Kokyuryu'
poisonous or irritant
dry soil, moist soil
preferred soil pH: any
minimum temp: -35°C
USDA zone: 6 to 8
Large pendant racemes of fragrant, double violet-blue flowers in early summer. Attractive pinnate leaves.
Plants may not flower until fully established, which can take five years. May be damaged by late spring frosts, best grown on a west facing wall in cold areas.
Prune twice yearly: in August, cutting new growth back to five buds, and in February, cutting shoots back to two buds. An alternative regime is to prune just once, at the end of August or early September, cutting back to two buds.
Stems twine in a clockwise direction.