Japanese Wisteria

(Wisteria floribunda)

Contact: Diane Relf, Extension Specialist, Environmental Horticulture

August 1996

Summary:

Foliage: Deciduous broadleaf
Height: 25 to 30 feet
Shape: Spreading

Shiny, bright green leaves turn yellow in autumn. Fragrant, pea-like flowers bloom in clusters 8 to 36 inches long.

Plant Needs:

Zone: 4 to 9
Light: Partial shade to full sun
Moisture: Wet, moist, or dry
Soil Type: Sandy, loam, or clay
pH Range: 4.5 to 7.0

Functions:

Suggested uses for this plant include climbing vine, specimen plant, and screen (with support).

Planting Notes:

Transplant with care. Slow to establish.
For best results, transplant in deep, moist, well-drained loam soil.

Care:

Too much nitrogen fertilizer stimulates vegetative growth and reduces flowering.
This vine requires a strong support.
Requires little care once established and flowering well.

Problems:

Scale insects can be a serious problem.

Alternatives:

Consult local sources, including historic or public gardens and arboreta, regarding cultivars and related species that grow well in your area.

Cultivars of WISTERIA FLORIBUNDA:
`Alba' has 11-inch racemes, moderate fragrance, and white leaflets.
`Longissima Alba' has 15-inch racemes, good fragrance, and white leaflets.
`Rosea' has pale-rose, purple tipped leaflets with long, 18-inch racemes.

Related species:
W. SINENSIS (Chinese Wisteria) is a more vigorous grower and has a blue-violet flower, but is not as fragrant.

Comments:

A fast growing vine which can be trained into a tree form.
Not the easiest plant to keep flowering. Steps to induce flowering must be carefully followed.
Wisterias are excellent vines for training to grow over patios, arbors, or pergolas.
Suitable for bonsai.

Additional Materials:

The following Extension publications are available through your local Extension office or directly from: Virginia Tech Extension Distribution Center 112 Landsdowne St. Blacksburg, VA 24061
#426-608, "Selecting Landscape Plants - Ornamental Vines"

This material was developed by Carol Ness as part of the Interactive Design and Development Project funded by the Kellogg Foundation. Mary Miller, Project Director. Diane Relf, Content Specialist, Horticulture. Copyright 1989 by VCE.

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