Japanese Wisteria Healthy Will Not Bloom - Knowledgebase Question

Worcester, MA
Question by nestingwinds
March 5, 2000
I have healthy vigorous Japanese wisteria that I can not get to bloom. I was told that it takes a few years but I am going on 6 to 7 years with this vine. What can I do to get this thing to flower in the spring?

Answer from NGA
March 5, 2000


Unfortunately, in "wisteria speak", a few years can even mean about 20 although it's not usually nearly that long especially for plants grown from cuttings or by grafting. First of all make sure you are not overfertilizing. Next, if you are truly frustrated, you can try "root pruning" by cutting deeply with a sharp spade on just one side of the vine. This may stress it and stimulate it to bloom. Alternatively, there is always patience. Maybe this will be the year!

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