The lush, mostly blue abundance of flowers is certainly the main reason for planting a wisteria in the garden. With good care, you can certainly look forward to it. Sometimes, however, there is no flowering, and then it is necessary to remedy the situation.

If the wisteria does not bloom, there can be various reasons

Why isn't the wisteria blooming?

Before you start worrying about why your wisteria isn't flowering, ask yourself if it's old enough. A grafted wisteria flowers for the first time when it is about two to three years old. To do this, however, it must be pruned regularly. Even plants grown from seed often take a lot longer to flower.

Other reasons for a failure to flower are incorrect pruning or no pruning, lack of water and/or nutrients (especially in spring or just before flowering) and an unfavorable location. Because even if the wisteria thrives quite well in the shade, it only blooms sparsely there. In the shade, there is usually no flowering at all.

Possible causes for a lack of flowering:

  • the wisteria is still too young (applies especially to self-grown plants)
  • Over-fertilization, especially with nitrogen
  • nutritional deficiencies
  • too shady location
  • lack of water in spring
  • extreme drought during the flowering period (resulting in flowers and/or buds dropping)
  • incorrect or insufficient pruning

What can I do for a lush bloom?

Before you can do anything concrete, you first have to find the reason for the lack of flowering. If the wisteria is too young, only patience and waiting will help. If your wisteria was under-watered in spring or early in the flowering period, you may have to wait until next year. In the future, water the plant regularly, but without causing waterlogging.

Even a wrong pruning cannot be undone. Don't worry too much though, the wisteria is recovering even from a radical cut. According to good guidance, prune in the winter and give it superphosphate in the spring. Then it will soon be in full bloom again. In the wrong location, on the other hand, the only thing that helps is transplanting.

The right pruning for lush flowering

Wisteria flowers only on older short shoots. You should therefore definitely prune long whip shoots. Shorten these in August to 30 to 50 centimeters and in winter to three to five eyes. In between, young shoots can form there again, which you can simply break out.

tips

To ensure that your wisteria blooms profusely in the coming season, you can support it with a dose of superphosphate in April.

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Trees