Wisteria 'Blue Moon'

A remarkable cultivar of our native Kentucky Wisteria, 'Blue Moon' is cold-hardy to -40 degrees Fahrenheit with no loss of flowering ability and reblooms to assure you of fragrant flowers for months. Vigorous, quick-growing, and tirelessly floriferous, this Wisteria produces large, showy, lilac-blue flowers held in foot-long racemes like enormous clusters of grapes. The fragrance is sweet and intense, so plant Blue Moon where it can share its scent with garden visitors and near open windows and doors! The first flush of bloom is in early summer, with a brief rest before repeats. Imagine all the flowers you will have for vases as well as garden enjoyment!

'Blue Moon' is also fully hardy, not only able to withstand severe winters but to bloom afterwards. Bred in Minnesota, it has weathered -40 degrees Fahrenheit without damage.

Blue Moon is a vigorous, quick-growing vine, reaching 25 feet long within just a few years. It needs no pruning, and only should be trimmed back if necessary after the final flowering. Let it race across pergolas, over arches, and up trellises and other strong supports, dangling its huge blooms along the way. A fully-blooming 'Blue Moon' is a breathtaking sight!

Give this vine as much sunlight as possible for best flowering. It flourishes in moist, well-drained soil enriched with compost and other organics. Zones 3-9.

Wisteria

Planting:

Set out plants at least 6 feet apart, in a well-drained, humusy soil. Full sun assures optimum bloom; Wisteria also prefers locations with southern or western exposures.

Maintenance:

Avoid nitrogenous fertilizers, which will produce exces sive vegetation at the expense of flowering. Instead, yearly applications of super phosphate should be made in the fall.

To Prune:

Allow one leader shoot to grow from the end of each main framework branch. Cut these back – best if done in winter – by half. In the summer, pinch side shoots to 6 or 7 leaves, and pinch back side shoot branchlets to first or second leaf.

Follow this procedure for several years, until the plant has filled its desired space; thereafter, only the side shoots will need pruning. In winter, cut these back to spurs 1 to 3 inches from the base and eliminate dead wood and suckers.

To Prune to a Standard:

Prune to one strong main stem and attach to a sturdy stake. Continue to cut off all shoots except the main stem, allowing top growth to remain. When trunk reaches desired height, pinch out top growth, then allow branches to grow from upper portion, while pinching side shoots in summer and pruning in winter as described above.

Zones:

Zones various

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