Wisteria sinensis is a twining climber with pendant clusters of pale and dark purple-blue flowers in late spring and early summer. Flowers May to June. Hardy. Supplied with a good root system in a 1 litre pot. Just dig a hole deep enough to put the entire root-ball in, remove the pot and place the root-ball in the hole with the main stem nice and straight. cover with soil and then firm down and water. You can buy one, two or three wisteria plants with this order. (This plant is ornamental - harmful if eaten)