I've had a Chinese wisteria planted for about 3 years. I bought it so it could cover my deck railing. It had blooms on it when I purchased it. The following year, I got sparse blooms in fall. Last year, nothing. This spring, I noticed that 3/4 of the vines (of course, the part I had wrapped about my deck railing) were dead! Is this normal? I cut them back to the live areas, where there's only 3 short (18-24") stems that are leafing out. My questions are: how quickly will the wisteria recover, how much growth can I expect this year, and should I hold my breath on it blooming? I'm just not a patient person but the blooms are so heavenly smelling. The plant is sited in nearly full sun with good drainage. The living branches look great- they were just short in comparison to the vines that died.