Scientific Name:
Wisteria floribunda
Pronunciation:
wiss-TEER-ee-uh flore-ih-BUN-duh
Common Name:
Japanese wisteria
Family Name:
Fabaceae
Plant Type:
Vine - deciduous
Key ID Features:
Leaves alternate to 35cm long, pinnately compound with (9-)11-15(-19) leaflets, most lanceolate-elliptic, 6-8(-13)cm long; raceme to 40cm long, florets pea-like, up to 2cm wide, blue-violet or pink-white, fragrant; pods (legumes) long, felty, brown, 8-15cm long. Winter ID: liana, twines clockwise; buds acute with 2 glands at base; leaf node has spine-like projection; persistent pods.
Habit:
Irregular
Form:
Climbing
Texture:
Coarse
Mature Height:
22 - 30m
Mature Spread:
5 - 7m
Growth Rate:
Fast
Origin:
S.E. Asia / Japan / China (Japan)
Hardiness Rating:
Zone 5: (-29 to -23 °C)
Exposure:
Full sun, Part sun/part shade
Soil/Growing Medium:
Well-drained
Water Use:
Moderate
Landscape Uses:
Arbors or trellis, Fragrance
Additional Info:
Google. Often confused with Chinese wisteria (stems twine counter-clockwise).
Leaf Morphology:
Form:
Compound
Arrangement:
Alternate
Texture/Venation:
Soft flexible
Surfaces:
Glabrous
Compound Leaf:
Odd-pinnate
Colour in Fall:
Yellow
Shapes:
Lanceolate, Ovate
Apices:
Acuminate
Bases:
Attenuate
Margins:
Entire, Undulate (wavy)
Additional Info:
(9-) 13-17 (-19) leaflets
Inflorescence Type:
Raceme
Flower Morphology:
Flowers perfect
Number Of Petals:
5
Corolla Shape:
Bilabiate
Ovary Position:
Superior
Colour (petals):
Showy, Violet
Flower Scent:
Fragrant
Flower Time at Peak:
May
Additional Info:
flowers open gradually from bases to tips before or as the leaves emerge
Fruit Type:
Legume
Fruit Colour:
Green, Brown
Fruiting Time:
Sep, Oct
Additional Info:
Showy, Persistent
Bark Morphology:
Lightly fissured
Bark or Stem Colour:
Tan, Brown
Leaf Bud Type:
Conical (long-pointed)
Leaf Scar Shape:
Round
Organ Modifications:
Fibrous-like roots, Root nodules (N-fixing), Twining stems
Propagation:
Seed, Softwood cuttings
Maintenance:
High
Pest Susceptibility:
Scale insects (Pest resistant, Disease resistant)
