What Is Wisteria

In the Fabaceae (Leguminosae) family of flowering plants, the genus Wisteria contains eleven species of woody twining vines that are native to China, Japan, Korea, Vietnam, Southern Canada, the Eastern United States, and northern Iran. Later, they were imported to France, Germany, and a number of other European nations. Some species are common houseplants.

The aqueous flowering plant, Hygrophila difformis, belongs to the Acanthaceae family and is more often known as wisteria or “water wisteria.”

Is wisteria toxic to people?

Eastern and central North America is the home to the ornamental ivy known as Virginia creeper. It features five-leaf groupings of tiny leaves, or leaflets. It is occasionally mistaken for poison ivy, which has leaflets that form clusters of three. Fortunately, unlike poison ivy, Virginia creeper doesn’t contain an oil that can cause rashes. Just repeat yourself, “Leaves of three, let it be; leaves of five, let it thrive,” if you have difficulties remembering which plant is which.

Virginia creeper’s berries and leaves can be poisonous, therefore it’s not entirely non-poisonous. Virginia creeper berries have small crystals called oxalate crystals and resemble purple grapes. Additionally, Virginia creeper leaves contain these crystals. Chewing on the berries or leaves can irritate the throat, lips, tongue, and mouth. Although extremely rare, oxalate crystal-containing plant consumption has been linked to nausea, vomiting, diarrhea, and trouble swallowing. Typically, the symptoms appear fast and might linger for up to half a day.

A climbing vine called wisteria produces clusters of blue or purple blossoms that dangle and are fragrant. Wisteria seeds are housed in velvety, dangling seed pods. All plant parts include the dangerous compounds lectin and wisterin, which, if ingested, can result in a burning feeling in the mouth, stomach pain, vomiting, and diarrhea. The seed pods and seeds are thought to be the sections of the plant that are the most deadly. Once they start, these symptoms might linger for up to two days.

You can assist someone who mistakenly comes into contact with Virginia creeper or wisteria by doing the following:

  • Wipe their mouth with gentleness.
  • To get the plant matter out of their mouth, have them spit while you have them rinse with water.
  • To help rinse the residual substance into their stomachs, they can take a few little sips of water.
  • Sucking on ice chips or other icy foods may provide pain relief for people whose mouths are inflamed.
  • Keep them hydrated by giving them regular, short sips of clear liquids if they are feeling nausea or vomiting.

Check the webPOISONCONTROL online tool for advice or dial Poison Control at 1-800-222-1222 if you believe someone has been exposed to Virginia creeper or wisteria and is experiencing problems.

How do wisteria’s effects impact demons?

  • The name “Fujikasane,” which means “wrapped in wisteria,” comes from the fact that wisteria is utilized to keep the demons imprisoned on Mount Fujikasane during the Final Selection[3].
  • Wisteria is used to inscribe the ranks of the corps members on the back of their hands after the Final Selection .[4]
  • Wisteria may be utilized to make poisons that can immobilize Lower Ranks of the Twelve Kizuki and paralyze common Demons. These poisons have been demonstrated to have the power to dissolve practically any demon in sufficient doses, as demonstrated by Shinobu Kocho, eliminating their ability to regenerate .[5]
  • Shinobu was able to alter her own physique by using Wisteria Flower Poison with the aid of Tamayo and Yushiro. As part of her defense against Doma, Shinobu voluntarily changed her own physiology so that every cell of her flesh was covered in wisteria poison[6], transforming her body into a covert human poison capsule that, given enough time, would slowly eat away at the bodies of even the highest Upper Ranks of the Twelve Kizuki. She claimed that her whole size and weight made her equivalent to 37 kilograms of poison, or over 700 times[7] more than what would be required to kill an average demon.
  • Shinobu uses wisteria to make a drug that will transform a Demon back into a human .[8]

What makes wisteria special?

Wisteria vines have a very long lifespan. Wisteria plants have been present for some time. There are some wisteria plants that are 100 years old or older, and there is even a wisteria tree in Japan that is 1,200 years old.

Wisteria is it a tree or a vine?

In the spring, wisteria blooms ferociously, producing clusters of lilac-colored flowers on fresh growth that develops from spurs off the main stalks. Check out our Wisteria Growing Guide for more information on wisteria maintenance, including planting and pruning.

About Wisteria

Wisteria is a long-living vining shrub with cascades of blue to purple blossoms that, in the spring and early summer, look stunning hanging from a pergola or archway. However, this vine is known to grow fairly heavy and to grow quickly and aggressively, frequently reaching lengths of more than 30 feet. It’s advised not to put wisteria vines too close to your home since they will squirm their way into any crack or crevice they can find.

Beautifully fragrant wisteria flowers offer a feast for the senses. A brown, bean-like pod remains on the plant during the winter after flowering. There are only blooms on fresh growth.

Note: Be careful when planting wisteria! The wisteria plant contains lectin and wisterin, which are poisonous to people, animals, and even pets. If taken in significant quantities, these poisons can result in anything from nausea and diarrhea to death.

Is Wisteria an Invasive Plant?

The wisteria species Wisteria sinensis and Wisteria floribunda, which are not native to North America, are regarded as invasive in several areas. If you want to add a new wisteria to your garden, we advise choosing one of the native North American varieties, such as American wisteria (Wisteria frutescens) or Kentucky wisteria (Wisteria macrostachya), which are excellent alternatives to the Asian species.

Do you want to know how to distinguish between North American and Asian species?

While North American wisteria is not quite as aggressive in its growing tendencies and has smooth seed pods and fruits in addition to more-or-less cylindrical, bean-shaped seeds, Asian wisteria is an aggressive grower with fuzzy seed pods. Another distinction is that the flowers of American and Kentucky wisterias appear in the late spring after the plant has begun to leaf out, whereas those of Chinese wisteria do not.

When to Plant Wisteria

  • Plant during the plant’s dormant season in the spring or fall.
  • Wisteria can be grown from seed, although plants from seeds frequently take many years to mature and begin to bloom. It is advised to buy wisteria plants that are already established or to begin with a cutting.

Where to Plant Wisteria

  • Put a plant in full sun. Even while wisteria will grow in some shade, it won’t likely bloom. Sunlight is necessary.
  • Wisteria should be grown in fertile, wet, but well-draining soil.
  • Wisteria will grow in most soils unless it is in bad condition, in which case you need add compost. Find out more about soil improvements and getting the soil ready for planting.
  • Because wisteria grows swiftly and can easily engulf its neighbors, pick a location apart from other plants.
  • Additionally, wisteria is renowned for encroaching on and infiltrating surrounding buildings like homes, garages, sheds, and so on. We highly advise against growing wisteria too near your house!
  • Wisteria vines need a very strong support, like a metal or wooden trellis or pergola, to climb on. Plan carefully and use substantial materials to construct your structure because mature plants have been known to become so heavy that they destroy their supports.

Wisteria looks gorgeous growing up the side of a house, but use caution when planting it because it is a very strong vine that will get into any crack or gap!

Caring for Wisteria

  • Apply a 2-inch layer of mulch and a layer of compost under the plant each spring to keep moisture in and keep weeds at bay.
  • Phosphorus is often used by gardeners to promote flowering. In the spring, work a few cups of bone meal into the soil. Then, in the fall, add some rock phosphate. Study up on soil amendments.
  • If you get less than an inch of rain each week, water your plants. (To determine how much rain you are receiving, set an empty food can outside and use a measuring stick to gauge the depth of the water.)
  • During the summer, try pruning the out-of-control shoots every two weeks for more blooms.

Pruning Wisteria

  • In the late winter, prune wisteria. Remove at least half of the growth from the previous year, leaving only a few buds on each stem.
  • Also prune in the summer after customary flowering if you prefer a more formal appearance. On fresh growth, spurs from the main shoots of the wisteria develop its blossoms. Trim back every new shoot from this year to a spur, leaving no more than 6 inches of growth. So that there are no free, trailing shoots, the entire plant can be trained, roped in, and otherwise organized throughout this procedure.
  • Mature plants that have been cultivated informally require little to no more pruning. However, for a plant that has been formally trained, side branches should be pruned back in the summer to 6 inches, then again in the winter to 3 buds.
  • Possess you a fresh wisteria? After planting, aggressively prune the vine. Then, the next year, trim the main stem or stems to a height of 3 feet from the growth of the previous year. After the framework has grown to its full size, midsummer extension growth should be cut back to where it started that season.

May I handle the wisteria?

Wisteria Wisteria has a seductive charm, but did you know that it is only mildly harmful to cats and dogs? Its seeds, in particular, are harmful in every way. Only a small amount of seeds might result in moderate nausea, vomiting, diarrhea, and central nervous system depression.

How does wisteria smell?

It has a powdery, delicate aroma that is more pleasant than lilacs, in my opinion. It actually does smell like wisteria blossoms in the spring and has a really feminine perfume.


Wisteria plants are poisonous in all parts, but the pods and seeds are particularly dangerous. Even while severe poisonings are uncommon, it has been documented that exposure to as little as two seeds might have detrimental consequences. Oral burning, stomach ache, diarrhea, and vomiting are among the symptoms. In 1.53.5 hours, digestive problems may start to manifest. Weakness, syncope, vertigo, and confusion have all been reported. It has also been observed that white blood cells have increased.

Usually, symptoms go away in 24 to 48 hours, but in one case, the vertigo and chronic weakness persisted for 57 days. In hazardous exposures, lectins do not have the mitogenic and blood coagulation effects that are observed. Headaches are reported to occur when this plant’s smoke is inhaled.

What are wisteria’s cultural connotations in Japan?

Celebrate spring with a hanami, one of the nicest things to do in Japan (flower viewing party). Although cherry blossoms have come to be associated with the word “hanami,” it doesn’t only apply to them. In Japan, any species of flower is worth seeing. All year long, breathtaking seasonal decorations can be seen in gardens, parks, temples, and shrines.

Crowds are particularly attracted to the purple wisteria vines because of their eye-catching hues and enticing aromas. They frequently appear in artwork, poetry, family crests, and ceremonial kimonos because in Japanese culture they stand for love and longevity. The heroine of “Fuji Musume (Wisteria Maiden),” one of the most well-known kabuki dances, wears wisteria to represent the feelings of love. Buddhists also like them because of the way their petals and branches droop; they resemble a head bowed in prayer.

Wisteria are among the flowers you must see in Japan because of their captivating beauty and cultural significance. Don’t miss out if you’re visiting at this time of year! Discover when and where to see the best wisteria in Japan by reading on.

Why does wisteria frighten demons?

We learned that wisteria deters demons in a recentish episode of Demon Slayer (uncertain when this will be published). This piqued my interest. I was aware of the name, of course, but the episode made me realize that I was unaware of what wisteria actually is. not to mention why they would make a strong all-around defense. I thus did as I normally do and turned to my trusted friend Google.

The first thing I discovered is that wisteria are incredibly lovely:

Since Quebec’s weather can be rather fickle and only the hardiest plants can survive, I doubt that we see the flower very often. However, as I shall discuss a little later, that might not be be the problem. By entering “wisteria” and “devil” together in the search field, I discovered a second thing: there isn’t a clear connection between the two. More research was required!

In actuality, wisteria is an Asian plant species that belongs to the pea family. Though I believe it has spread to the nearby areas as well, it appears to have its natural origins in China and Japan. It was introduced to Europe and America some time ago, and now various American versions are also successful in the US.

The plant’s traditional meaning comes from Chinese and Japanese civilizations. The flower has also been utilized in Kabuki theater as a symbol of love, sensuality, support, sensitivity, bliss, and tenderness. It is more frequently linked to luck, youth, and births. I suppose all these loving and compassionate relationships may be seen as the opposite of demons, but I’m not sure that’s the whole story.

In reality, the bloom is quite resilient, and individual specimens can survive for hundreds of years. The oldest live one is currently thought to be in Japan and has been extant for more than 1200 years. It is therefore not strange that it is linked to immortality. Although there are trees that outlive flowers much longer, the endurance of flowers is still rather remarkable.

We can draw a few parallels between this and the Demons. I haven’t read the manga, and the anime hasn’t provided us with a lot of information on the demon lore thus far, so I’m just treating them like vampires. mostly because they are killed by the sun, which is typically associated with vampires even though their behavior is very similar to that of zombies. In essence, I’m thinking that demons do not age and do not pass away naturally, but the anime has not explicitly stated this.

Wisteria is also a rather combative plant. You must frequently trim them back when introducing them into new surroundings or else they risk taking over and suffocating the nearby plants.

Thus, rather than being hostile to demons, they are comparable to them in many ways. a persistent and perhaps deadly presence that encroaches on other living things.

In actuality, there is a straightforward canon explanation for demons’ aversion to flowers. You could assume that the fact that Demons want to stay away from them so desperately is because of the plant that can be used to create a poison that is fatal to them. They want to cross the grove so badly that they would rather starve to death on a remote mountain. I don’t think the tale goes any further than that.

But I want to add my headcanon to it since we like to find relevance when there isn’t actually any. Find a tiny reason why the author would have picked that particular flower over the dozens of dangerous plants that were available. Furthermore, I don’t believe the conventional interpretations are enough. Instead, there was a fusion of those symbols and the plant’s organic behavior.

They resemble devils if you consider wisteria as a symbol of rebirth and immortality and add that to their lengthy lifespans and predatory nature. Both prey on others in search of immortality, but one is a sign of impending death, while the other is the promise of brand-new life. The other, which is connected with sunshine, conveys our ideal of freshness and beauty while conjuring images of decay, rot, and gloom. They are conceptually similar to funhouse mirror representations of one another.

Okay, so this might be a bit of a stretch, but I like this interpretation of Wisteria’s role in the Demon Slayer mythos. What do you think of the series, if you guys watch it? Am I making any sense here? Perhaps there were hints in the episode that I missed (or simply put, I’m slow sometimes), which would have led us to believe the exact opposite. I’d be interested to hear about any conspiracy theories you may have.