Wisteria is a very fast grow hardy deciduous climber often admired when their lilac flowers are seen in early summer, the preferred soil is a moist but well drained soil, the trick is to avoid any high nitrogen feeds as the wisteria roots have the capability to product or fix nitrogen locally in the soil, a high potash feed is preferred as this will encourage the production of flowers, getting wisteria to flower can be very frustrating there are a couple of tips to help this, the first is to make sure any plants you buy are not seed grown but propagated vegetatively ,the second point is to avoid high nitrogen feeds as the plant is capable of producing lots of growth after flowering in early summer, after the flowers have finished the pruning for established plants involves cutting back the new growth hard back to within a few buds of the base of the new growth, this may need to be done a couple of times each year.d
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