Another reason for wisteriabloomingproblems is the environment they're growing in. Wisteria vines that lack full sun or proper drainage may be stressed, and while they will grow leaves... I have had it for 15 years,but it has only bloomed a few times and that was lightly.Why doesn't my wisteria shrub produce flowers? Rou29587530. I have a wisteria that drives me crazy! It is five years old and has never produced a flower. I have trimmed, fed, talked to and even sang for this. WisteriaBloomingProblem Hi Alan, Here are a few suggestions: 1. I suggest that you cut out a 3-4' ring around the base of the Wisteria and place 2" of mulch in the ring. I know wisterias are sometimes late in blooming, but this is a long time to wait! The roots of the plant face east and get lots of sun. This is a good article about wisteria care from OSU Extension. Wisteriablooms might be lacking because of too much nitrogen, which encourages leafy growth only. Learn why wisteria plants are reluctant to bloom and how to encourage flowering. Find out effective techniques to help your wisteria vine thrive and produce beautiful blooms. Fertilizer is the issue that most people suspect in non-blooming cases, but that’s rarely a problem. Wisteria roots are big and very capable of mining the needed nutrients from even... Japanese wisteria (Wisteria floribunda) follows shortly after, blooming in mid-to-late spring as its foliage begins to unfurl. Answer: This is the most-asked question pertaining to vines. To say the least, it’s a common problem. Often the exact cause will be hard to determine.
