Japanese Wisteria, Kyushaku Wisteria 'Longissima'

Wisteria floribunda

Family: Papilionaceae (pa-pil-ee-uh-NAY-see-ee) (Info)
Genus: Wisteria (wis-TEER-ee-uh) (Info)
Species: floribunda (flor-ih-BUN-duh) (Info)
Cultivar: Longissima
Additional cultivar information:(aka Macrobotrys, Multijuga, Murasaki Naga Fuji, Naga Noda, Purple Patches)


Vines and Climbers

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Flowers are fragrant

Water Requirements:

Unknown - Tell us

Where to Grow:

Unknown - Tell us


15-20 ft. (4.7-6 m)

20-30 ft. (6-9 m)


Unknown - Tell us


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)

Sun Exposure:

Full Sun


All parts of plant are poisonous if ingested

Bloom Color:


Bloom Time:

Mid Spring



Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

Patent Information:


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


This plant has been said to grow in the following regions:


Tucson, Arizona

Brea, California

Sacramento, California

Santa Paula, California

Spring Valley, California

Carrollton, Georgia

Wyanet, Illinois

Cambridge, Massachusetts

show all

Gardeners' Notes:


On Jan 18, 2015, sladeofsky from Louisville, KY (Zone 6b) wrote:

This selection has the longest flower clusters of all, up to 3 (some claim 4) feet. The length is variable however, nonetheless still larger than other Wisterias.


On Dec 22, 2014, pmehring from Charlottesville, VA wrote:

Japanese Wisteria is extremely invasive in our area. We have seen it pull down large trees. We suggest checking your state's invasive plants list before planting Wisteria. We have had some success trying to eliminate it by cutting the vines and runners close to the ground and treating them with glyphosate solution. Be aware that wind can spread the seeds far from the parent plant. The twenty foot long runners also can spread the vine quickly.


On Oct 23, 2011, BotanicalBoi from Carrollton, GA (Zone 7b) wrote:

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 used brush clearer with no luck. Please be careful unless you want this EVERYWHERE!


On Oct 1, 2003, cernunose wrote:

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 growing plant.

the wisteria propagates by thier roots.
they branch out underground and after a while rise up and begin to form,
to produce new plants from an old one simply cut a 6-whatever inch section of a set of roots that has started to sprout and already has its first leaves, then plant:)