Blue Rain is a left-turning (Wisteria floribunda) or right-turning (Wisteria sinensis) climbing plant that you often see along walls or along a pergola. The plant flowers from April to June. You do need a wire mesh or trellis. Or a pergola.
The plant then winds itself upwards. The flower clusters are blue or white and grow to 25 to 30 cm. You can also combine Wisteria with a Clematis. You can let the shrubs grow together nicely. Wisteria flowers a little earlier and the Clematis takes over. This gives you a flowering pergola or wall for a long time.
Wisteria is a very fast grower. You can keep it in check by pruning it twice a year. The long tendrils can grow up to 2 meters per year. If you let the plant go it can grow up to 20 meters high and 10 meters wide. One pruning is enough to keep the plant in check. The plant loses its leaves in the winter. In the spring beautiful green leaves appear again. You usually buy this climbing plant as a grafted plant.