Wisteria grows in my area of zone 4, but although I have not tried to grow any yet. Blue moon is bred to survive the cold winter temperatures that we experience in South Dakota.
Propagating the wisteria vine is easy to do and there are several different ways to do this. You can take cuttings, dig up the roots or use the layering method. No matter which you method you choose to start your cuttings, growing a wisteria vine will grace your yard with a hanging canopy of green leaves and flowers.
Clip A Healthy Young Shoot
Clip a healthy young shoot off the vine. Use the ones with new growth or semi-mature stems. Do not take any that is mature or has very hard bark on the outside. These will not be as easy to grow a root system. Use a sharp knife or clippers to cut the shoot. If the ends are ragged or torn, it makes the piece more susceptible to fungus or disease. Take off some of the lower leaves. Now you can propagate this cutting in different ways.
Rooting in Water
A piece of 12 to 18 inches long placed in a glass of water, will help roots to form. You can add a little rooting to the water. This may help it root faster. Place the bottom end of the stem in a glass of water. Put in a sunny window. Leave in the water until roots form. It is a good idea to change the water occasionally because it begins to smell.
Rooting in Medium
Rooting medium will also help roots to form. Take a cutting of new growth about five inches long. Dip one end in rooting hormone then tuck the bottom third of the stem into the rooting medium. Water lightly. Place this in a plastic bag to keep the humidity high and help keep it warm. If you see mold beginning on the soil or plant, leave the bag open for several hours.
When you see shoots beginning to grow, that means that the roots are forming as well. Wait a week or two, then you can leave the plastic bag or cover off for several hours of the day.
Dig up Roots
Another method is to dig up some of the roots. Cut a section of the roots off and replant that part of the root in the place where you want your wisteria to grow. Dig up a sucker. This will already have some roots on it. Just replant it where you want and keep well watered until it's established.
Layering is finding a one-year-old runner extended along the ground. Find where it has been soil bruised. Leave the shot tip above ground, but cover the rest with soil. Approximately a year later, roots will form. Sever the section and replant where you want the wisteria to grow. Another way is to put soil over the top of the runner in a section and place a brick over the top to anchor it down. A new plant will emerge in this section.
Sever the section and replant where you want the wisteria to grow. Another way is to put soil over the top of the runner in a section and place a brick over the top to anchor it down. A new plant will emerge in this section. You can sever it off the original plant and put it in the ground where you want.
Best Time to Take Cuttings
Late winter or late summer is the best time to take cuttings. It is best to do it before the new growth starts.
It takes several years for your new wisteria to bloom. If grown from seed, it can take up to 10 years for it to bloom. Do several cuttings at one time, because not all of them will produce roots.