The wisteria is producing buds in August. A very mature nurseryman tends his very mature wisteria by regularly pruning to encourage new growth and blooms. His vine blooms about 5 times before frost hits in November.
His technique seems to be working. Farmer MacGregor gets up on a ladder and prunes every once in awhile. I feed the 2 vines we have Dr. Earth tree formula.So far, so good