Temperature and Humidity
Chinese wisteria can withstand temperatures down to around minus 20 degrees Fahrenheit. But its buds might die in prolonged cold, causing the plant to flower less. This plant likes high humidity but can grow in drier climates as long as its soil remains moist.
Don't put coffee grounds on wisteria. Coffee grounds have a quality similar to tea leaves: They are acid. Wisterias are not acid-loving plants.
Fungal Leaf Disease in Wisteria The fungal leaf diseases commonly known as powdery mildew and leaf spot are frequently observed in wisteria, but they're not a major concern. Both may start as small yellow spots on leaves, but powdery mildew eventually develops a white, fuzzy Read more
Wisteria needs regular pruning to keep the growth and size under control, but it will also improve the flowering display.
Wisteria Fertilizer Requirements Fertilize your wisteria with a low-nitrogen product once every year, or every other year. Technically, your plant would be fine without fertilizer, but fertilizer can help encourage quicker growth and more blooms.
The most likely reason your wisteria won't bloom is due to too much nitrogen. When a wisteria plant has too much nitrogen, it will have plenty of foliage growth, but very little and maybe no blooms. Another reason for wisteria blooming problems is the environment Read more
To successfully transplant wisteria, you must dig deep. Continue digging and prying in a circle around your transplant. Wisteria doesn't like to be moved, so take up as large of a root ball as possible. The more root with its original soil, the greater chance Read more
Wisteria pollen is a well-known trigger of hay fever, and sometimes even just pruning or touching the plant can cause reactions to the skin.
Three years ago we planted two wisteria vines next to a wooden arbor in Sawyer, Mich., in sandy soil. We have great green growth, including leaves and tendrils, but no buds or flowers. Cultivars of one species, Kentucky wisteria (Wisteria macrostachya), generally will flower after Read more
Growing wisteria in pots The wisteria will need repotting every two years into a larger pot unless you prune the roots to keep the plant in a bonsai fashion. Choose a pot that is widest at the neck so removing and replacing the plant is Read more
Plant wisterias in full sun or partial shade, but make sure the vines receive at least six hours of direct sun daily to encourage good flower development. Once planted, wisterias require little pampering to encourage robust growth. During the first year, water regularly until the Read more
While these climbing growers are useful for sprucing up your landscaping and vertical space, they can also be toxic to dogs and cats, particularly since wisteria contains poisonous seeds and pods.
Wisteria flowers The flowers on female plants bear only female parts that produce fruits and seeds, the stigma and style. It is not necessary to have both sexes present in order for dioecious plants to bloom.
Wisteria dies due to root rot if the plant is overwatered. A severe infestation of scale pests/Borer insects can also kill Wisteria trees. Sudden death of Wisteria is due to Honey fungal infection. Wisteria is a genus of woody bines that look wonderful with their Read more
Two species of scales, tiny insects with hard shells, attack wisteria vines. As it feeds on wisteria, calico scales secrete honeydew, a sugary substance that causes disease and attracts ants. Wisteria scales are darker in color and also feed by attaching themselves to the vines.
A healthy wisteria plant will produce seed pods in late summer and fall. The pods hang from the vine, just like peas. To keep a mature wisteria plant blooming, it's best to cut the seed pods off.
Wisteria will adapt to most soil types, although they prefer a neutral to slightly acid soil pH of 6.0-7.0 for best results. You can test your soil pH with a pH kit available at most garden centers.
Wisterias normally bloom in early May. Soon after the blooming period is over, tendrils begin to grow out of the main structural vines that you've tied to the cross braces. For the first few years, while the wisteria is being trained, it won't bloom because Read more
Nitrogen and iron are the most common nutrients that may be deficient in wisteria. Leaves will first turn yellow and if untreated, may turn brown. Wisteria that have some nutrients in excess such as salts often present as brown tips on the leaves or leaf Read more
Insect Pests Affecting Wisteria Wisteria leaves turning yellow can also be the result of insect pests. These include tiny, soft-bodied, yellowish-white pests called aphids that leave behind a sticky substance on leaves, called honeydew.
Most begin flowering within 3-4 years of planting. After a long summer, established wisterias may form pendant, bean-like seedpods that are an additional feature. Wisteria prefers a sunny position, but can be grown in slight shade. Plant in a well-drained, fertile soil.
Wisterias flower best with sun. Epsom salt can help by providing magnesium and releasing elements needed for blooms. If your vines still refuse to bloom, root-prune in early fall to shock plants and hopefully trigger bud set.
The blooms appear in mid- to late spring, in May or June in most places. The plant can take up to two months for all of its blooms to show through in their entirety. Through a process called deadheading, you can achieve a second bloom Read more
Cut back the whippy green shoots of the current year's growth to five or six leaves after flowering in July or August. This controls the size of the wisteria, preventing it getting into guttering and windows, and encourages it to form flower buds rather than Read more
Rooting Wisteria Plants Prepare a pot with well-draining potting soil that has been thoroughly moistened. Dip the rooting end of the cutting into rooting hormone. Using a finger or a stick, make a hole in the potting soil, then place the wisteria cutting in the Read more
There's no mistaking the sweet fragrance of wisteria as it perfumes the garden – its beautiful, violet-blue or lavender blooms cover this vine in mid-late spring. While growing wisteria is easy, you should take caution with it, as it can quickly overtake everything without proper Read more
Wisteria pollen is a well-known trigger of hay fever, and sometimes even just pruning or touching the plant can cause reactions to the skin. If your customers want to keep that same pretty purple coloring in their yard, consider substituting with evergreen clematis (Clematis armandii) Read more
Nutrient Excess/Deficiency Nitrogen and iron are the most common nutrients that may be deficient in wisteria. Leaves will first turn yellow and if untreated, may turn brown. Wisteria that have some nutrients in excess such as salts often present as brown tips on the leaves Read more
Newly planted tree wisteria may take longer to leaf out in spring. While some people may notice regrowth right away, others may not see any growth until later in the season, from June to late July.
Wisteria takes from five to 10 years to mature. You may not see flowers until the plant is that old, but when your Wisteria is not protected from winter winds, a freeze can damage flower buds as well as the stem tips, and then your Read more
Wisteria Pests A variety of pests nibble at wisteria leaves, but only the wisteria borer has been observed giving established plants any real problems. These tiny beetles cut perfectly round holes into the woody parts of the vine, where they may spend a significant portion Read more
In Chinese wisteria, all the flowers in a cluster bloom at the same time. Japanese wisteria flowers are “indeterminate,” which means the lower flowers in the cluster open first, and blooming progresses along the cluster from base to tip.
So how do you know if your wisteria with no leaves is simply slow to start (dormant) or actually dying? Check for stem flexibility first. If the plant bends easily, it's ok. Dead plant stems will snap and break off.
Plant wisterias in full sun or partial shade, but make sure the vines receive at least six hours of direct sun daily to encourage good flower development. Also choose a sheltered planting location if you live in a colder climate, since the flower buds can Read more
Wisteria enjoy neutral to slightly acidic soil. Overly boggy, soggy soil is not a condition that a wisteria will put up with and that excess moisture will manifest in limp, yellowing leaves that will start to fall off the plant. Check your drainage and stop Read more
Pythium fungi shoulder the blame for most cases of root rot in wisterias. But the fungi only feast on the roots of the wisterias if the roots sit in water due to poor drainage or excessive watering. Moist soils throughout the country contain the fungi.
Crown and Root Problems Crown galls, cankers, root rots and graft failures may result in the total collapse of your plant. These conditions usually cause plants to slowly fail, wilting all or part of the canopy, as the sick plant parts have increasingly less access Read more
A wisteria root system digs deep and spreads wide in order to anchor the huge vine. Experts recommend that if you locate a wisteria near a structure or walkway, you should insert a corrugated panel some 6 feet (1.8 m.) long and several feet (1 Read more
The wisteria (Wisteria sinensis) is characterized by its lovely violet, blue or white flowers that hang in long strands. Caring for wisteria plants indoors is relatively easy as they are notorious for being a hardy, fast-growing plant that flourishes easily in the right conditions.