Japanese Wisteria: Care & Growing Guide

Introduction About Japanese Wisteria

Japanese wisteria/Wisteria floribunda, American wisteria/Wisteria frutescens, and Chinese wisteria/Wisteria Sinensis are the most popular wisteria utilized in landscape architecture nowadays. In Japan, they are the only magnificent flowers that blossom. Wisteria floribunda was introduced to the US for decorative purposes in the nineteenth century. Since then, it has been growing aggressively in various parts sections of the country.

Wisteria floribunda Japanese Wisteria has beautiful locks of sweetly aromatic, pea-like violet blooms up to the length of 20″, making it one of the darkest purple Wisteria cultivars. The flowers are borne in spring or summer.  They are then accompanied by gorgeous pods (similar to beans) that mature at the end of summer and last until winter. The fresh green leaves thick foliage with 10-20 lance-shaped leaflets transforming into a vivid golden-yellow in the fall is equally appealing.

Despite its slow establishment, Japanese wisteria or white wisteria is invasive and aggressive in North Carolina due to its rapid growth and rooted surface runners. It’s a woody deciduous vine that twines clockwise and necessitates strong support and frequent pruning. The stems can thread up to 10-25 feet along with a stake or be grown as a shrub or small tree. Bright green compound pinnate leaves with 15-19 leaflets and 12-18 inch long hanging clusters (racemes) of scented pink to purple pea-shaped flowers. As the leaves appear in the spring, these flowers emerge from the base of the clusters to the tip. Pendant velvety seed pods around 6 inches long ripen in the feces after blooming.

These flowers are very popular and worth knowing. Hence, learn more about this plant in detail below [1].

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Japanese Wisteria Features

Japanese wisteria tree
Japanese Wisteria: Care & Growing Guide 7

Scientific Name     

The botanical name is Wisteria Floribunda.

Common Name     

It is commonly known as Japanese wisteria.

Native Area

Their origin is from Japan.

Type of Plant          

The plant type is Vine.

Plant Size    

This plant is 4-8′ in width while it has a length of 10-25′.

Sun Exposure

Full sun

Type of Soil

They prefer moderate soil with good drainage.

pH of soil

Acidic soil is recommended.

Blooming Time

The flowers start emerging in May.

Flower Color

The different shades of blue, pink, violet, white.

Hardiness Zones

Wisteria zone ranges from zone 4 to zone 9 is highly preferable.

Toxicity

Toxic to pets and humans.

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Wisteria’s Leaves Characteristics

By transferring pollen on its legs from flower to flower, a bee pollinates Japan’s Wisteria. The leaves of wisteria are bipinnate, meaning that they are partitioned into leaflets, and each leaflet is further subdivided. One fern-like leaf can grow 30 cm long, with 13-19 leaflets that alternately cross midrib. Additionally, a touch of red can appear on newly emerging leaves. Racemes, or flower-producing stems, develop in early spring, carrying grape-like clusters of blooms. Moreover, flower groups can reach as long as 18″ and droop elegantly for 46cm, and seeds are produced in velvety bean-like pods that are toxic.

Wisteria floribunda
Japanese Wisteria: Care & Growing Guide 8

How to Grow Wisteria Floribunda?

One must take into account the following wisteria growing conditions for optimal growth.

Light

To guarantee that Japanese wisteria generates the maximum amount of blossoms, it should be planted in full sun or medium shade, i.e., regular 6 hours of direct sunshine. While this appears to be a simple task, wisteria’s climbing growth habit makes it more difficult. Wisteria enjoys climbing over objects that provide shade. Rather than allowing wisteria to climb on the house and cause a shadow, develop a structure, thereby eliminating this problem and creating new attention in your garden. Wisteria vines may cause result in structural damages, so try not to let them climb up.

Soil

Wisteria may grow in any soil type if it is well-drained and constantly moist but not damp. In most regions, wisteria will not thrive. It prefers a location with permeable, organically rich loamy soil. It is sensitive to alkaline or very acidic circumstances when it comes to pH levels. It thrives at a pH ranging from 6.0 to 7.0.

Water

Similar to most shrubs and trees, Japanese wisteria tree requires frequent irrigation for their first year. This is because frequent watering will aid in the establishment of roots. Moreover, they should only require supplemental watering during dry months after this first season. Also, when watering crops, know that slow, thorough watering is preferable to frequent, shallow watering.

Humidity and Temperature

The original range of Japanese wisteria is found in a temperate climate. Therefore, it thrives in environments comparable to its natural habitat, as it is cold resistant yet vulnerable to high heat—moreover, the USDA wisteria hardiness zone range from 4 through 9.

Fertilizer

When it concerns fertilizer with Japanese wisteria, simple is best. If you’re going to fertilize, use a low-nitrogen fertilizer. Also, it is acceptable to fertilize your white wisteria yearly, and perhaps even not at all.

You may be over-fertilizing with nitrogen if your wisteria isn’t flowering. Cease fertilizer and trim roots to scare the plant into bloom. To root prune, cut the roots in a ring around 2′ away from the plant’s trunk, with a spade.

As a result, the plant will be put under pressure hence yielding more blossoms.

Patience, on the other hand, pays off. Wisteria can take up to 3 years to blossom, so do not be disappointed if your new plant does not emerge right away. However, if you prune appropriately, you will have magnificent flowers in no time.

Pruning Japanese Wisteria

As white wisteria tree flowers grow on new shoots, you will be required to prune two times a year to maintain the plant size under control. Moreover,  keeping branches adjacent to the primary structural system will help you enhance the blooms’ beauty. You may accomplish this simple task by cutting back new growth to 6″ in July or later when the wisteria has flowered. This is an excellent time to perform support pruning, removing any extension that isn’t required for the plant’s primary structure and suckers. It would be best if you cut at least half of the previous season’s growth during the winter or second pruning, keeping in mind that wisteria only flowers on fresh wood.

Wisteria tree
Japanese Wisteria: Care & Growing Guide 9

Cultivating Japanese Wisteria

Japanese wisteria comes in a variety of varieties. When entirely handled, they all make lovely screens and arbors. Further, you can also trim and fashion it into a small, self-supporting Japanese wisteria tree or shrub. This white wisteria vine is not fussy about its growing soil, although they prefer full sun.

Moreover, they need to be pruned periodically to avoid taking over. In fact, in certain places of the United States, these lovely flowers have become invasive weeds. Therefore, consistently prune yours throughout the growing season to ensure that the Vine grows only where you want it to. It will require extensive pruning in the fall or winter. This is also the optimum time to eliminate suckers, young shoots that emerge from the plant’s base or roots.

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Japanese Wisteria Varieties

The Japanese wisteria types are given below,

Alba

They have white, pleasantly fragrant flowers.

Carnea aka Kuchibeni

They are also white flowers with pinkish tips.

Issai

They are available in different hues of violet to blue.

Ivory Tower

These white flower racemes are 2 feet in length and highly aromatic.

Longissima Alba

Another white flower is 2 feet long and pleasantly scented.

Macrobotrys

Available in a range of red to violet colors that are 2 to 4 feet racemes.

Multijugate

Purple flowers grow in May or June.

Variegata aka Non-Nishiki

This variety has foliage that is splattered with cream to yellow.

Violacea Plena

Highly fragrant flowers are available in violet to blue. These double flowers occur in groups.

White Blue Eye aka White/Blue Eye

These beautiful white flowers are available with blue-violet blotch.

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How to Care for Japanese Wisteria?

Wisteria care is all about appropriate trimming and the capacity to resist the need to fertilize. Following these two practices will ensure that you have a lovely, robust wisteria for many years to come.

Since Japanese wisteria blooms early in the spring, late-season colds can destroy flower buds.

wisteria care
Japanese Wisteria: Care & Growing Guide 10

Uses of Wisteria Floribunda

Flowers, leaves, and seeds are all edible. However, immature seeds should be handled with caution because they might be hazardous.

  • The chestnut flavor comes from baking the seeds.
  • One can make tea substitutes from young leaves. You can eat cooked flowers as well.
  • You can make sandals and ropes from the bark of Wisteria floribunda.
  • Bridge cables are made up of branches

Pests/ Diseases Problems

Pests, diseases, and other plant troubles are faced at extreme levels by this plant. Once established, this plant requires a lot of attention because of its fast growth. Moreover, the seeds have the potential to be toxic.

It might be a challenge to get this plant to bloom. However, root trimming, phosphorus fertilizer, and cutting back the shoots to just 3 to 4 buds are some tactics that you can use.

Location of Japan Flower in Japan

This plant is considered to be one of the most amazing plants in Japan. If you wish to see them in Japan, then visit the following places,

  • Kawachi Fujian Wisteria Garden, Fukuoka Prefecture
  • Mandaraji Temple, Aichi Prefecture
  • Ashikaga Flower Park, Tochigi Prefecture
  • Kameido Tenjin Shrine, Tokyo
  • Shirai Omachi Fuji Park, Hyogo Prefecture
  • Byakugou-Ji Temple, Hyogo Prefecture
  • Tennogawa Park, Aichi Prefecture

FAQs

Does wisteria grow in Florida?

Wisteria Sinensis (Chinese wisteria) is an invader in Florida that grows from April to June. The Florida-friendly American wisteria replaces the invasive species of this plant.

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How to grow wisteria UK?

Wisteria grows best in full sun, but it can also be cultivated in partial shade. Grow in rich, well-drained soil. Choose a wisteria that has been produced from cuttings or grafted when purchasing a fresh one. Wisterias grown from seed have a lower flowering success rate and take longer to bloom.

white wisteria
Japanese Wisteria: Care & Growing Guide 11

How fast does Japanese wisteria grow?

Wisteria is a vigorous, tangled vine that, in some situations, may grow highly invasive. To maintain their rapid development, the vines need robust support. Also, you can develop them up to 10′ each year after it has established itself in suitable habitat.

Will wisteria grow in partial shade?

Wisterias can be grown in full sun or partial shade, but they need a minimum of 6 hours of direct sunlight per day to flower correctly. If you reside in a colder region, pick a covered planting place because heavy spring snow can destroy the flower buds.

What is the best time to plant wisteria UK?

Wisteria is best planted in the spring or autumn. Shovel in well-rotted organic matter like garden manure or well-rotted compost before planting to enrich the soil.

How to grow wisteria in a pot UK?

For optimal flowers, put your white wisteria pot in a whole light. Ensure the potting soil does not dry out by checking it regularly. Each year in the spring, you ought to nurture your wisteria. Use a general-purpose fertilizer with a 5-10-5 ratio.

Conclusion

Wisteria floribunda (white Japanese wisteria tree) is a lovely climbing vine that may be found adorning arbors and trellises all across Japan. Its scents are enticing, and people are amazed by its hues and blossoms. It is a beautiful flowering plant with purple, pink, white, or blue blooms. As the plant is a climber, it is frequently trained to climb into unusual trellises and arches around Japan. However, if not adequately cared for or placed, it may become invasive and a major hassle for you and your neighbors.

Check with your local rules to discover if Japanese wisteria is an invasive species before growing it.

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