Japanese Wisteria Issai-naga A more compact cultivar of Japanese wisteria suitable for smaller sites, Wisteria floribunda Issai-naga is a large, fast-growing, long-lived, deciduous climber which twines clockwise round its supports. It is best grown along galvanised wires attached to a sunny wall of a house or over a pergola, where the downward-hanging flowers can be appreciated. The bright green, compound leaves are heavily divided into long, graceful leaflets, emerging at the same time as the flowers. In May, racemes, 1’/30cm long, of lightly scented, bluish-lilac, pea-like flowers hang down from the stems; they are attractive to bees. Japanese wisteria Issai-naga is a particularly free-flowering cultivar. Site: ShelteredSoil: Any fertile, moist but well-drained soilPosition: Full sun; tolerates partial shadeSeason of interest: May in particularHardiness: Fully hardyHeight: 16’ (5m); Spread: 5’ (1.5m)