Image by Mabel Amber, still incognito... from Pixabay

The Wisteria Vine about this Vine

Last updated on December 30th, 2023 at 08:34 am

The Wisteria Vine.  The most common is the Japanese purple Wisteria.  A good woody vine that is well known for its hanging clusters of fragrant, violet-blue, flowers that bloom in spring.

However, they only bloom during the spring seasons.  But, some have been known to flower again during the fall season.  How to make them bloom longer during the spring seasons later in this post.

The flowers are followed by green compound foliage on the twining stems. Perfect for covering patios, arbors, or fences. The stems will get large and can vine around to almost any object nearby. Finally, it is deciduous during the winter seasons.

The Wisteria Vine is hanging over a wall.

The Wisteria vine
Image by Mabel Amber, still incognito… from Pixabay

Wisteria Hanging on a Steel fence

The Wisteria Vine
Image by Beverly Buckley from Pixabay


The White Japanese Wisteria.

The Wisteria Vine
Image by likesilkto from Pixabay

Where to Place Wisteria?

These vines love the full sun they will not bloom as often if placed where there is too much shade.  Give them room to grow as they can grow up to 60ft. tall and about 30 ft. wide.  Place them near arbors, fences, or poles so they can wrap themselves around and bloom in early spring.  The Wisteria vine can support itself once it gets into its 3rd-4th season of growth.

How to make your Wisteria bloom.

Many folks who can’t get their Wisteria to bloom think they need more fertilizer.  Moreover, the biggest problem is too much nitrogen.  Most store-bought fertilizers have a high concentration of nitrogen and this element is good for growth and greenery but not flowers.

The soil is poor, alkaline, and sandy in and around the Southwest.   The first sign of low phosphorus is the flowers on your Wisteria or other blooming plants do not bloom.

The element that helps make flowers bloom is phosphorus.  BR-61 has a high concentration of phosphorus. So does any fertilizer with a high middle number analysis.  A good natural source of phosphorus is “bone meal“.

You may have guessed that crushed up bones from animals.  But before you start adding gobs of phosphorus in your soil it is recommended to test your soil first.  You can read more about testing your soil for phosphorus levels by following this link. Test your soil for phosphorus. 

Most garden stores will have a bone meal on their selves year round it is an organic fertilizer and has an NPK analysis of about 3-15-0 this will vary from brand to brand.  A bone meal will also help encourage root growth.

Problems with Wisteria

Fungus and powdery mildew is a major problem for this Vine.  It is best to plant it in full sun and avoid overspray from lawn sprinklers.  Go organic and use neem oil to help with fungus problems.  Neem oil will also kill insects but it will take several applications before neem oil works. Learn more about Insects and Diseases in Plants.

Wisteria borers are also a big problem. They drill small holes into the larger stems.  It’s best to use a good systemic borer control product to kill borers that are killing your Wisteria Vine.

More vines for the Southwest.  






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