Japanese Wisteria Wisteria floribunda 'Issai Perfect'

☠ Toxic to humans
🐾 Toxic to pets
🌸 Blooming
🍪 Not edible
‍🌱 Hard-care
Japanese wisteria 'Issai Perfect'


Wisteria floribunda 'Issai Perfect' is an enchanting deciduous climber known for its showy appearance. The plant is adorned with long, pendulous clusters of flowers that can be a spectacular sight when in full bloom. These flowers are a soft, alluring shade of violet-blue and possess a delicate, sweet fragrance that adds to the sensory appeal of the plant. Each individual flower is a composed of multiple tiny florets that are arranged closely together in a raceme, contributing to a full, lush look. The leaves of Wisteria floribunda 'Issai Perfect' are notable for their elongated, feather-like shape, adding a refined texture to the plant’s appearance. They emerge as a light, fresh green in spring and mature to a deeper hue as the season progresses, providing an attractive backdrop to the plant's floral display. In the fall, the foliage may turn a pleasing yellow color, adding another layer of visual interest to the landscape. The overall growth habit of this variety of wisteria is twining and winding, which enables it to climb gracefully up structures like trellises, arbors, or fences. Its stems can develop a considerable thickness over time, giving the plant a robust and woody character. This climbing habit, combined with the enchantment of its flowers, makes the 'Issai Perfect' a highly desirable choice for enhancing vertical spaces in a garden with both color and fragrance.

Plant Info
Common Problems

About this plant

  • memoNames

    • Synonyms

      Japanese Wisteria, Floribunda Wisteria, Issai Perfect Wisteria.

    • Common names

      Wisteria floribunda.

  • skullToxicity

    • To humans

      Japanese wisteria, including the cultivar 'Issai Perfect', is toxic. All parts, especially the seeds and pods, contain compounds such as wisterin, which is harmful if ingested. Symptoms of poisoning can include nausea, vomiting, stomach pain, diarrhea, and some people may experience dizziness. Severe poisoning can potentially result in collapse or convulsions. It is important to seek medical attention immediately if ingestion is suspected.

    • To pets

      Japanese wisteria is toxic to pets. The seeds and pods, in particular, contain glycosides that can cause gastrointestinal issues if ingested. Symptoms of poisoning in pets can include vomiting, diarrhea, depression, and in severe cases, it may lead to confusion, collapse, or seizures. It is crucial to consult a veterinarian immediately if you suspect your pet has ingested any part of this plant.

  • infoCharacteristics

    • Life cycle


    • Foliage type


    • Color of leaves


    • Flower color


    • Height

      10-15 feet (3-4.5 meters)

    • Spread

      4-8 feet (1.2-2.4 meters)

    • Plant type


    • Hardiness zones


    • Native area



  • money-bagGeneral Benefits

    • Ornamental Appeal: Produces striking, long clusters of purple flowers that can add aesthetic value to gardens and landscapes.
    • Shade Provision: With its dense foliage, it can create shaded areas, making it ideal for arbors or pergolas.
    • Habitat for Wildlife: Attracts pollinators like bees and butterflies, thereby supporting local ecosystems.
    • Scented Flowers: The blooms are known for their pleasant fragrance, which can enhance the sensory experience of any garden.
    • Vertical Interest: As a climbing plant, it can add height and structure to gardens, drawing the eye upward.
    • Seasonal Interest: Offers visual interest across multiple seasons with its flowers in spring and foliage in summer and fall.
    • Privacy Screen: When grown on fences or trellises, it can serve as a natural and attractive privacy barrier.

  • medicalMedical Properties

    This plant is not used for medical purposes.

  • windAir-purifying Qualities

    This plant is not specifically known for air purifying qualities.

  • leavesOther Uses

    • Wisteria vines can be trained to create living tunnels or arches in the garden, providing a whimsical and romantic passageway that blooms in the spring.
    • The strong, pliable stems of mature wisteria can be woven into furniture such as chairs and trellises, showcasing a unique blend of natural beauty and functionality.
    • Wisteria can be used in bonsai art to create miniature, ornamental versions of the typically large plants, offering an ancient and disciplined form of gardening.
    • Dried wisteria seed pods can be used in floral arrangements or as a part of decorative centerpieces for their interesting shape and texture.
    • When carefully controlled, wisteria can be grown as a thick, flowering ground cover in areas where vertical space is limited.
    • The twining growth habit of wisteria can be harnessed to create living sculptures by training the vines over forms, allowing gardeners to bring creativity into landscaping.
    • Wisteria flowers can be used to prepare a naturally fragrant and visually stunning botanical dye for fabrics, though their use in this way is not common.
    • The plant's vine can be twisted and dried to create natural wreaths or other decorative items to accentuate rustic or country-themed decor.
    • Incorporating wisteria in landscape designs can attract pollinators such as bees and butterflies, adding to the ecological richness of the environment.
    • For culinary presentations, wisteria flowers can be crystallized with sugar and used as edible decorations for desserts, adding both taste and visual appeal.

Interesting Facts

  • bedFeng Shui

    Wisteria is not used in Feng Shui practice.

  • aquariusZodiac Sign Compitability

    Wisteria is not used in astrology practice.

  • spiralPlant Symbolism

    • Longevity and Immortality: Wisteria is known for its ability to live for several decades, even centuries, symbolizing enduring life or immortality.
    • Love and Romance: With its cascading flowers, wisteria is often associated with passionate love and can symbolize new love or the intense emotions of a romantic relationship.
    • Welcome: In some cultures, wisteria flowering in spring is seen as a symbol of welcoming people, often planted near the entrance of homes for this reason.
    • Generosity and Expansion: Due to its vigorous and expansive growth habit, wisteria can represent an abundance of generosity or the spreading of one's influence.

Every 7 to 10 days
2500 - 10000 Lux
Every 2-3 years
Spring to summer
As needed
  • water dropWater

    Japanese wisteria should be watered deeply, making sure to saturate the soil around the root zone. During the growing season, it's generally best to water this plant once a week, ensuring that it receives about 1 inch of water each time. Frequency may need to increase during periods of extreme heat or drought to every 3 to 4 days. During the winter months when the plant is dormant, reduce watering to every two to three weeks, unless there is sufficient rainfall. Monitor the soil moisture level frequently, as overwatering can lead to root rot which is detrimental to the wisteria.

  • sunLight

    Japanese wisteria thrives best in full sun, meaning at least 6 to 8 hours of direct sunlight per day. It prefers an open area where it can receive ample sunlight from above, avoiding significant shading from other plants or structures. Proper exposure to sunlight is critical for the plant's growth and blooming potential, so choosing a spot where it can bask in the sunlight unobstructed will yield the best results.

  • thermometerTemperature

    Japanese wisteria prefers temperate climates and will do best when the temperature range is between 55 to 75 degrees Fahrenheit. It can survive in temperatures that occasionally drop down to around 20 degrees Fahrenheit, making it hardy enough for cooler regions. This plant's ideal growing conditions include warm, sunny days and cooler nighttime temperatures, which are typical in the spring and fall.

  • scissorsPruning

    Pruning Japanese wisteria is essential to control its vigorous growth and to encourage the development of flower buds. The optimal time for pruning is twice a year: once in the late winter to prepare the vine for the upcoming growing season, and again in mid-summer to tidy up any unruly growth. During winter pruning, cut back last year's growth to two or three buds per stem, which helps to stimulate flowering.

  • broomCleaning

    As needed

  • bambooSoil

    Japanese wisteria 'Issai Perfect' thrives in fertile, moist but well-drained soil with a pH of 6.0-7.0. A recipe for the best soil mix would include loamy garden soil, well-rotted compost, and granular slow-release fertilizer to provide a balanced nutrient profile.

  • plantRepotting

    Japanese wisteria 'Issai Perfect' is typically grown outdoors and seldom needs repotting. However, if grown in a container, repot every 2 to 3 years in the spring using the soil mix described previously.

  • water dropsHumidity & Misting

    Japanese wisteria 'Issai Perfect' is adaptable to average outdoor humidity levels and does not require specific humidity conditions when grown outdoors in its suitable hardiness zones.

  • pinSuitable locations

    • Indoor

      Provide bright light, prune to manage size, ensure good air flow.

    • Outdoor

      Plant in full sun, provide sturdy support for climbing, prune as needed.

    • Hardiness zone

      5-9 USDA

  • circleLife cycle

    Japanese Wisteria 'Issai Perfect' begins its life as a seed, which upon germination in favorable conditions, develops into a seedling with a rudimentary root system and shoots. As it grows, it enters the vegetative stage, producing leaves and elongated stems that start to twine and climb on available supports, characteristic of its vining habit. During its flowering stage, typically in the spring, it produces long, pendulous clusters of fragrant, purple-blue flowers, after which, if pollinated, it will produce seed pods. These seed pods mature over the summer and eventually dry and release seeds for reproduction. As a perennial plant, it will enter a period of dormancy in the winter, with leaf fall and reduced metabolic activity. Over the years, the Wisteria 'Issai Perfect' matures into a robust woody vine capable of living for decades, repeating the flowering and growth cycle annually.

  • sproutPropogation

    • Propogation time

      Spring to summer

    • Wisteria floribunda 'Issai Perfect', commonly known as Japanese wisteria, can be propagated most effectively through softwood or hardwood cuttings, especially for ensuring the genetic similarity to the parent plant. The best time to take cuttings for propagation is during the summer months when the plant is actively growing, as this is when softwood cuttings have the highest chance of success. To propagate by cuttings, a gardener should cut a portion of new growth, ideally about 4 to 6 inches (approximately 10 to 15 centimeters) long, just below a leaf node. This cutting should then have the lower leaves removed and be dipped in rooting hormone before being placed in a well-draining soil mix. Covering the pot with a plastic bag to retain humidity can aid in the rooting process, and it is crucial to keep the soil consistently moist but not waterlogged. After several weeks, the cuttings should have developed their own root systems and can be transplanted to larger pots or directly into the garden.