Wisteria floribunda, common name Japanese wisteria (藤, fuji), is a species of flowering plant in the family Fabaceae, native to Japan. Growing to 9 m (30 ft), it is a woody, deciduous twining climber. It was first brought from Japan to the United States in the 1830s. Since then, it has become one of the most highly romanticized flowering garden plants. It is also a common subject for bonsai, along with Wisteria sinensis (Chinese wisteria).
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The flowering habit of Japanese wisteria is perhaps the most spectacular of the Wisteria genus. It sports the longest flower racemes of any wisteria; they can reach nearly half a meter in length. These racemes burst into great trails of clustered white, pink, violet, or blue flowers in early- to mid-spring. The flowers carry a distinctive fragrance similar to that of grapes. The early flowering time of Japanese wisteria can cause problems in temperate climates, where early frosts can destroy the coming years' flowers. It will also flower only after passing from juvenile to adult stage, a transition that may take many years just like its cousin Chinese wisteria.
Japanese wisteria can grow over 30 metres (98 ft) long over many supports via powerful clockwise-twining stems. The foliage consists of shiny, dark-green, pinnately compound leaves 10–30 centimetres (3.9–11.8 in) in length. The leaves bear 9-13 oblong leaflets that are each 2–6 centimetres (0.79–2.36 in) long. It also bears numerous poisonous, brown, velvety, bean-like seed pods 5–10 centimetres (2.0–3.9 in) long that mature in summer and persist until winter. Japanese wisteria prefers moist soils and full sun in USDA plant hardiness zones 5-9. The plant often lives over 50 years.
- 'Burford' agm — pale violet with purple keel
- 'Domino' agm - pale lilac
- 'Hon-beni' or 'Rosea' agm - pale rose flowers tipped purple, 18 in (46 cm) long
- 'Issai Perfect' - light lavender flowers
- 'Ito Koku Riu' or 'Royal Purple' - dark blue or violet flowers, lightly scented, long clustered bunches, 30–50 cm (12–20 in) long
- 'Jako' or 'Ivory Tower'
- 'Kimono' agm
- 'Kokuryu' agm - violet, scented
- 'Kuchibeni' or 'Carnea' - pink flower
- 'Lawrence' agm - pale violet flowers, deeper violet keel and wings
- 'Longissima Kyushaku' - mauve-purple flowers on a raceme up to 6 ft (1.8 m) or even 7 feet (2.1 m) in length
- 'Macrobotrys' or 'Longissima' - reddish-violet flower clusters 1 m (3.3 ft) or longer
- 'Macrobotrys Cascade' - white and pinkish-purple flowers, vigorous grower
- 'Nana Richins Purple' - purple flowers
- 'Nishiki' - variegated foliage
- 'Plena' or 'Violaceae Plena' - double blue flowers in dense clusters
- 'Praecox' or 'Domino' - purple flowers
- 'Purpurea' - unknown - may be Wisteria sinensis 'Consequa', sometimes labeled purpurea
- 'Rubra' - unknown - may be 'Honbeni' - sometimes labeled as Rubrum - deep pink to red flowers
- 'Shiro-noda' (W. floribunda f' alba) agm - long white flower clusters
- 'Texas Purple' - may be a sinensis or a hybrid, short racemes, purple flowers, produced while the plant is still young
- 'Violacea Plena' - double violet flowers, rosette-shaped
- 'White with Blue Eye' - also known as 'Sekines Blue' - very fragrant
- 'Yae-kokuryu' agm
Wisteria floribunda seeds (Muséum de Toulouse)
- "Japanese wisteria". Britannica. Retrieved April 25, 2021.
- "Wisteria floribunda, W. sinensis". United States Forest Service. Retrieved December 12, 2014.
- "Japanese Wisteria". National Park Service. Retrieved December 12, 2014.
- Purple Patches Japanese Wisteria (includes some growth conditions and US region map) www.monrovia.com, accessed 13 May 2020
- "Wisteria × valderi 'Burford'". RHS. Retrieved 5 March 2021.
- "Wisteria floribunda 'Domino'". RHS. Retrieved 18 February 2019.
- "RHS Plant Selector - Wisteria floribunda 'Hon-beni'". Retrieved 17 March 2021.
- "Wisteria floribunda 'Kimono'". RHS. Retrieved 5 March 2021.
- "'Wisteria floribunda 'Kokuryu'". RHS. Retrieved 18 February 2019.
- "Wisteria floribunda 'Lawrence'". RHS. Retrieved 18 February 2019.
- "Creator's Palette- pictures of Wisteria floribunda Longissima". www.creatorspalette.com. Retrieved January 10, 2017.
- <not stated> (December 7, 1929). "Title not noted". Gardener's Chronicle. 86 (3rd series) (4641): 446–447.
- "Wisteria floribunda f. alba 'Shiro-noda'". RHS. Retrieved 5 March 2021.
- Peter, Valder (1995). Wisterias : a comprehensive guide. Portland: Timber Press. ISBN 0881923184. OCLC 32647814.
- "Wisteria floribunda 'Yae-kokuryu'". RHS. Retrieved 5 March 2021.
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