Experts and BHG readers answer.
A wisteria vine in full bloom is enchanting. But wisterias aren't necessarily easy vines to grow. However, if you know the requirements and plan accordingly, you can grow a stunning wisteria. The right site. Plant your wisteria (Wisteria) in the right spot. To do best, the plant requires full sun (at least 6 hours a day) and well-drained soil. Especially important is a sturdy support, such as a pergola, because wisterias grow large and fast. The plant will quickly outgrow small structures and eventually the vine's heavy weight will crush them. Proper planting. Encourage success by planting your wisteria properly.
First, work the soil well around the hole where the vine will be planted. The roots will grow through this loosened soil more easily. Second, set the plant in the ground no deeper than it was growing before. Planting it too deeply may delay or prevent blooming. Once the wisteria is planted, water it well and mulch the soil with a material such as shredded wood. Keep the wisteria watered for several weeks after planting to allow it to become established. Pruning practices. Prune your wisteria twice a year to keep it from growing out of bounds and to keep it flowering well. The first pruning session should happen in summer, just after the spring flush of growth. Cut off the tips of all the side shoots. Cut off any new shoots as well. The second pruning session should happen in winter. Cut back the main stems by about half. The side shoots pruned in spring can be further shortened: Cut them back to only a couple of inches from where you see the flowering spurs (which look like little pegs). This encourages the production of more flowering spurs, which means more flowers next spring.