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Wednesday - December 09, 2015
From: Cedar Park, TX
Region: Southwest
Topic: Planting, Vines
Title: When to Plant Texas Wisteria?
Answered by: Anne Van Nest
QUESTION:
When is the best time to plant Texas Wisteria, Fall or Spring?ANSWER:
Late winter is a good time to plant Texas (American) wisteria (Wisteria frutescens). Early spring will be fine as well.
American wisteria is a high-climbing woody, deciduous vine, 25-30 ft. long. Shiny, dark-green, pinnately compound leaves bear 9-15 leaflets which are opposite on the leaf stem, with 1 leaflet at the tip. The flowers are in large, drooping clusters 6–9 inches long that appear after the plant has leafed out, a difference from the popular Asian species.
American wisteria is often used as an ornamental planting and has probably escaped from cultivation in many locations. In Texas, the Dam B cultivar has blue flowers in racemes and flowers late May to June and sporadically throughout the summer and fall. A cultivar called Nivea has white flowers.
The blooms only appear on new wood. Individual flowers are nearly 1 inch long and are lilac or bluish purple and quite fragrant. A brown, bean-like pod persists until winter. This species is less aggressive than the similar Asian species. Prefers a good loamy soil in a sunny south or southwest facing position, sheltered from cold winds and from early morning sun on frosty mornings. Plants can become chlorotic on alkaline soils. Prefers a rich soil, but some gardeners feel too rich a soil results in too much leaf growth. Tolerates seasonal flooding.
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