The Q&A Archives: NO Flowers on Wisteria

Question: I have two wisteria plants that are five years old and have not flowered yet. I have dug them like I was going to transplant them, dug a trench around them, put phosphorous around them and
cut them back last year. Still no flowers or buds. Could you please advise me on how to get flowers on these plants?

Answer: I know it's hard to believe, but five years is not a long time at all to wait for wisteria to bloom in wisteria terms. Some seed-grown plants can take nearly twenty years before deciding to bloom! A rule of thumb time frame is about eight years. So unfortunately I guess my advice is patience. Also, however, be sure not to provide an excess of nitrogen, and although it's a bit late for these plants, it's a good idea to plant named cultivars rather than seedling stock.

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