There has been a number of threads on wisteria, mainly discussing various aspects of pruning, container growing and getting it to flower. A properly pruned wisteria in full bloom is simply breath taking. I want to encourage all those who worry that their wisteria will not do well in a container, or who wonder why their wisteria won't bloom, or that it may grow rampantly and over grow the garden to persevere - it can be done. To start off with - flowering: 1. How long does it take to flower? It depends on the variety, the maturity of the plant when you bought it, and whether it is propagated by seeds, cuttings or layering. My W sinensis takes 4-5 years to bloom from cuttings, and 2 years with air layering branches 1/2 inch to 1 inch in diameter. Those grown from seeds will take 10-15 years (but I haven't tried it). 2. Why won't it flower? The usual answer is that you have been too kind to it. Pruning is the key to getting a wisteria to flower well. You have to keep on top of pruning off all those errant new vines that keep sprouting out like an octopus's tentacles. Through the summer, I am patrolling the plant about once every 2 to 4 weeks. Be very sparing on the nitrogenous fertilisers - you need to keep it on the lean side. An descriptive adage is "the more foliage it grows, the less flower it shows." 3. Will it do in a container? Of course, it will. After all, grown as a bonsai, it can be kept in a container for many, many years. Here are pictures of two specimens in our yard, just to give all who enquire some visual encouragement. This first one is trained as a "tree". The trunk of the young wisteria will not carry the weight of the top growth unless given a stout support that will carry the weight and will last many years - in this case, a two inch stainless steel chain link fence post set in concrete. This one is right in the middle of the flower bed. The nutrient rich soil means I have to do double duty pruning this one and keeping it in shape. This next one is grown as a tree in 24 inch container. Both of these wisteria are almost 12 years old. The container grown specimen was air layered off a 1 1/2 inch branch. The tree specimen grown in the garden was layered off a 1/2 inch branch. Both started flowering in their second year, but profuse spring flowering started in year 3 for the container plant and year 5 for the garden grown specimen. In our USDA Zone 8a, I leave the container outside in a sheltered position, with a foot thick layer of leaves and and mulch for winter protection.