Tree, Wisteria


QUICK REFERENCE PLANTING GUIDE

1. Light/Sun Exposure - Full to partial sun.

2. USDA Hardiness Zones - 3 to 9.

3. Planting Distance - 10 to 15 feet apart in ground.

4. Mature Height/Spread - 20 to 45 feet.  Will tolerate very heavy pruning

5. Bloom Time - Late spring/early summer within 2 to years.

6. Planting Instructions - See Below.

A. Dig a hole large enough to give the roots plenty of room with a few inches of space beyond the root tips and the sides of the hole. Build a mound of soil in the bottom of the hole and spread the roots in a natural position atop the mound.

B. Position the plant so that the previous soil line will be even with ground level. The stem/trunk will be darker in color below the original planting line and lighter in color above it.

C. Once the plant is positioned at the proper planting depth begin filling the hole with soil. Work the soil around the roots with your hands. When the hole is half filled tamp the soil to remove any air pockets.

D. Fill the planting hole with water and allow it soak in. Straighten the plant in the hole and finish filling with soil.

E. Form a "saucer" of soil around the edges of the planting hole and fill it with water.

F. Stake the tree to assist the roots in getting anchored. Staking will also maintain upper balance so that the trunk will continue to grow straight.

GET THE MOST ENJOYMENT

Tree Wisteria - Vines that have been trained into trees were originally enjoyed only by the wealthy. They are very easy to maintain as trees. They can grow up to 20 to 45 feet tall with a spread of 10 to 15 feet.  Be sure to give them plenty of room. Tree Wisterias need extra support to hold their heads up in strong winds.  Secure the trunk to the stake at several points about 8 inches apart.  As the head grows and the trunk expands, you’ll need to replace the original stake with a larger wooden stake or a heavy steel pipe. Check the tree in spring and fall to make sure the stake is holding firm and the material used to secure the trunk to the stake is not too tight and restricting the expansion of the trunk. Plants should always remain securely staked.  Do not let the vines touch the ground or attach to another plant nearby.  Tie the vines to the stake until the desired height is attained.  As each year passes, these garden gems will increase in size, beauty, and number of blooms. Imagine magnificent 1-foot racemes of densely packed pink, blue, or white flowers against a backdrop of emerging vivid green leaves each summer.

SOIL PREPARATION

Although these plants will perform well in average garden soils of all types, we recommend having your soil tested periodically by the local County Extension Office.  These tests can determine if the soil needs any amendments to enhance your plants' growth and performance.  See below for our recommended practice to improve your soil without any additional testing:

1. Spade or till the soil to a depth of 12-18".

2. It is always good to add organic matter to your soil. You can mix in a 2-4" layer of dehydrated manure, garden compost, shredded leaves and/or peat moss.

3. After active growth begins, periodically feed with Cottage Farms' water soluble Carefree Bud-N-Flower Booster.

CONTINUING CARE

Watering - Your plants require 1" of rainfall (or equivalent watering) each week when planted in the ground.  Do not allow plants in containers to dry out.  In a container that is exposed to full sun, water it well at least once every other day, and possibly every day, during periods of intense summer heat.  You may wish to temporarily move containerized plants to an area where they are shielded from the hot summer sun (i.e. in the shade of a tree, on a porch near an overhang). 

Mulching - Apply a 2-4" layer of shredded bark, compost or other organic mulch around your plants to promote moisture retention, maintain even soil temperatures, and to discourage weed growth.

Weeding - Keep the area around your plants free of weeds. Weeds compete with all plants for food, water and light. Walk around the garden periodically and pull weeds, including the roots, as soon as you see them. Mulch also assists in keeping weeds down.

Grooming - To preserve the globe shape of the head, tree Wisterias require light but frequent pruning of the long twining branches produced in summer. They also need one hard pruning in late summer or early fall a few weeks before your first frost date. Cut the current season’s growth back to just 5 to 6 large buds (leaving stubs about 6 inches long) and remove poorly placed branches entirely. This severe pruning controls growth and encourages some of the leaf buds to change into flower buds. Wisterias are very forgiving; vigorous growth the next season will give you a second chance. To ensure your tree keeps its form and doesn't try to become a bush, remove any growth that appears on the trunk below the main branches as it appears.  Also remove any growth coming up from the root system.

Feeding - Discontinue feeding after September 1st so your plants can harden off for winter dormancy. Resume fertilizing when new growth appears in spring and feed once every 2 to 3 weeks.

Winterizing - The time to protect your plants in the garden is after the ground has frozen. At that time, apply a winter mulch of evergreen boughs, straws or leaves to prevent lifting of the plant's roots during alternating periods of freezing and thawing.

For container planting, move plants next to your home's southern foundation for added warmth and protection. They may also be moved into an unheated, protected area such as a garage or cellar. If moved to a protected area be sure you water them well once every 7 to 10 days.

In spring, remove the mulch from in-ground plantings.   Also, bring containerized plants back out into the garden sunlight where they will immediately begin to repeat their yearly garden performance. 

CAUTION: Not all plant material is edible. Though most plants are harmless, some contain toxic substances which can cause headaches, nausea, dizziness, or other discomforts. As a general rule, only known food products should be eaten. In case of ingestion, please contact your local poison control center at once and advise them of the plant ingested. Keep out of reach of children.