Wisteria floribunda
Japanese Wisteria
"
A brilliant vine, well worth the work, great as an embellishment in a residential backyard or as a specimen in a garden.
"
Family |
Fabaceae |
Genus |
Wisteria |
Species |
floribunda |
Category |
Woody |
Type |
Vine |
Pronunciation |
USDA Hardiness Zone |
5 - 9 |
Canadian Hardiness Zone |
4 - 9 |
RHS Hardiness Zone |
H7 |
Temperature (°C) |
-29 |
Temperature (°F) |
-20 |
Height |
7.5-15 m |
Spread |
7.5-15 m |
General Description |
Vigorous, beautifully flowering vine with clockwise twining stems. Great for growing on large structures or trained into a standard form. |
Landscape |
Outstanding flowering vine; excellent for walls and pergolas. |
Cultivation |
Require considerable care; can be found strangling structures/other plants. Needs pruning (and root pruning) in late winter or after flowering. Needs ample support with metal pipe or stout timber. |
Shape |
Stout vine, climbs by twining stems clockwise. |
Growth |
Fast |
ID Characteristic |
Quite similar to W. sinensis. Leafs out two weeks before W. sinensis and may be injured by late spring frosts. W. floribunda stems twine clockwise while W. sinensis twine counterclockwise. |
Pests |
Susceptible to many; leaf spots, stem canker, root rot, Japanese mealybug, fall webworm, and crown gall to name a few. |
Habitat |
Anywhere with deep, moist, well-drained loam. A vigorous grower where naturally occurring (south). |
Bark/Stem Description |
Greyish colour on old trunks, smooth and sometimes with irregular rounded, lengthwise ridges. |
Flower/Leaf Bud Description |
"Narrowly oblong, come to a point. Three outer scales, one surrounding the entire bud. Reddish brown and pubescent. |
Leaf Description |
Alternate, pinnately-compound, 25-38 cm long. Rounded at base and come to a point. Leaves are bright green and typically late to leaf out. |
Flower Description |
Long, pendulous clusters of violet or violet-blue, fragrant flowers in late spring. Perfect, open from base to apex. Individual flower 13-19mm long. |
Fruit Description |
Long, brown, velutinus pod persisting from October into winter. 10-15 cm long. |
Colour Description |
Leaves occasionally turn butter yellow in autumn, new growth often bronze or purplish. |
Texture Description |
Medium in leaf, somewhat course in winter. Bark medium. |
Notable Specimens |
The Gardens of Fanshawe College, London, Ontario, Canada. The A. M. (Mac) Cuddy Gardens, Strathroy, Ontario, Canada. |
Propagation |
Seeds germinate without treatment, collect seed in autumn and sow directly; soak for 24 hours if dry. June/July cuttings rooted without treatment. |