A tree wisteria is simply a wisteria vine, trained to grow as a tree - essentially, it is simply a wisteria standard or a wisteria topiary, if you will. It takes many years, and careful and dedicated attention with hand pruners to achieve a mature specimen, but with grafted stock becoming more available ( to endure that flowering material is used rather then seedlings) a beautiful wisteria can be trained to grow into a small, weeping tree form in about ten years. I have seen some very impressive specimens in large, terra rosa pots, but these must be stored in frost-free conditions.
Wisteria can easily become a rampant weed, with runners creeping lightning fast across or just under the soil surface, or running up a tree quickly engulfing it, but there is no other plant quite like it, and a tree-form wisteria may be the best way to control a plant such as this vine. I suggest investing in a pre-trained graft, which can be costly ( $100 - $200) but it will guarantee both a selection that has the highest quality blooming stock, and a root stock that is less aggressive.
|Wisteria can be very fragrant, the scent reminds me of orange blossoms. It can drift across the garden on warm, spring days.|