Wisteria, Japanese Wisteria, Kyushaku Wisteria 'Longissima'

Wisteriafloribunda

Family
Fabaceae (fab-AY-see-ee)
Genus
Wisteria (wis-TEER-ee-uh)
Species
floribunda (flor-ih-BUN-duh)
Synonym
Sun Exposure
Full Sun
Foliage
Deciduous
Height
15-20 ft. (4.7-6 m)
20-30 ft. (6-9 m)
Hardiness
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
Danger
All parts of plant are poisonous if ingested
Bloom Color
Lavender
Bloom Time
Mid Spring
Other Details
Category
Vines and Climbers
Water Requirements
Foliage Color
Where to Grow
Bloom Characteristics
Flowers are fragrant
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
Patent Information
Non-patented
Propagation Methods
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Tucson, Arizona

Brea, California

Sacramento, California

Santa Paula, California

Spring Valley, California

Carrollton, Georgia

Wyanet, Illinois

Cambridge, Massachusetts

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Gardener's Notes:

3
positives
0
neutral
2
negatives
Sort By:
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E
Wyanet, IL | March 2019 | positive

http://www.glasshousewor...Read More

S
Louisville, KY (Zone 6b) | January 2015 | positive

This selection has the longest flower clusters of all, up to 3 (some claim 4) feet. The length is variable however, nonetheless still la...Read More

P
Charlottesville, VA | December 2014 | negative

Japanese Wisteria is extremely invasive in our area. We have seen it pull down large trees. We suggest checking your state's invasive p...Read More

B
Carrollton, GA (Zone 7b) | October 2011 | negative

This plant, while beautiful and with great smell has taken over a better part of my garden. It is impossible to get rid of. I have even u...Read More

C
| October 2003 | positive

have had this species for some time now and i adore it ! absolutely gorgeous plant if you dont mind training and caring for a fairly fast...Read More

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