General Plant Information (Edit)
Plant Habit: |
Shrub
Vine
|
Sun Requirements: |
Full Sun
|
Water Preferences: |
Mesic
|
Minimum cold hardiness: |
Zone 5a -28.9 °C (-20 °F) to -26.1 °C (-15 °F)
|
Maximum recommended zone: |
Zone 9b
|
Plant Height: |
30 to 80 feet long |
Leaves: |
Deciduous
|
Fruit: |
Other: brown legume pods to 6 inches long
|
Fruiting Time: |
Fall
Late fall or early winter
|
Flowers: |
Showy
|
Flower Color: |
Purple
|
Flower Time: |
Spring
|
Dynamic Accumulator: |
Nitrogen fixer
|
Toxicity: |
Other: Pods and seeds are poisonous
|
Pollinators: |
Various insects
|
Miscellaneous: |
Monoecious
|
- Japanese Wisteria
- Wisteria
Posted by
ILPARW (southeast Pennsylvania - Zone 6b) on Feb 4, 2018 6:45 PM concerning plant:
The Japanese Wisteria is occasionally found in Eastern and Midwestern landscapes in the US. It is a powerful, fast-growing woody vine (liana) that twines clockwise upon things. It blooms before the foliage emerges, with violet or blue-violet large grape-like clusters on old wood in April-early May. It is a very rampant vine that will kill trees if growing upon them and can break trellises or fences that are not strong, and it will grab anything. In USDA Zone 5 it often does not bloom because of late frosts. When it gets old it often does not bloom much, so gardeners often will give it super-phosphate and root prune to get it to bloom better. It has escaped cultivation in some areas. especially down South, and is invasive and a nuisance. There is a very similar Chinese species that should be considered a variety as the two can hybridize. The Chinese is supposed to leaf out a little later and climb counter-clockwise. They both can ground sucker and become quite a mess.
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