Wisteria frutescens 'LONGWOOD PURPLE'

Wisteria frutescens
Wisteria frutescens 'LONGWOOD PURPLE'
American wisteria
SIZE/TYPE vine
USUAL HEIGHT 3-5m
USUAL WIDTH 1-2m
LEAVES deciduous broadleaf
COLOUR OF LEAVES green
FLOWERS showy
COLOUR OF FLOWERS violet
BLOOMING TIME May - September
LOCATION full sun
USDA zone (lowest) 5   (down to -29°C)
WINTER PROTECTION  
FOR ZONE 5+6 Code of winter protection zone 5+6
FOR ZONE 7 Code of winter protection zone 7
BELONGS TO CATEGORIES Deciduous broadleaf
Summer blooms
American wisteria is quite different from its Asian relatives in many aspects. It grows smaller and more compact, producing shorter flower racemes, and it even does well in soils that tend to get waterlogged sometimes.

Longwood Purple is a variety of American wisteria originating from Longwood Gardens, Pennsylvania, USA. It is very similar to Amethyst Falls variety, just the colour is a little stronger. The lovely flowers are rich violet purple, borne in short racemes about 10 cm long. Their fragrance is faint, not similar to the Asian ones at all. They come out in profusion from late May and after the main flush has finished a short break comes after which the plant produces flowers again, not plenty, but one by one usually until late summer.

Deciduous leaves are fresh green, pinnate, and last long into winter. Even though it belongs to dwarf group it is still a short vine and needs at least some support. As it ages its framework of inner branches hardens up and will hold the plant on its own, but it will take some time. Pruning is possible from late winter until early spring before the buds begin to swell.

It likes acid, reasonably fertile soil that is constantly moist. No fertilizing recommended. Grow it in full sun for profuse flowering. Already one year old plants set flowers. Fully hardy to about -29°C (USDA zone 5).

Last update 12-02-2016
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Wisteria frutescens
GLOSSARY
  • STANDARD QUALITY - Plants of this group are 1st class quality with number of branches and overall density adequate to their size and age, considering they were container grown.
  • DE LUXE QUALITY - This label guarantees a luxurious quality of manually selected plants that, compared to their height and age, are exceptionally dense and beautiful.
  • EXTRA - These plants are usually mature and bigger specimens with exceptional overall appearance.
  • STANDARD (as described in the plant form) means a tree with a trunk of 190-210 cm and a crown at the top, unless specified differently. The commercial size for trees is their girth measured in the height of 1m from ground.
  • HOBBY - These plants are of the same quality as our standard-quality plants but younger and therefore cheaper.
  • SHRUB - a woody plant with branches growing bushy from the ground level.
  • HALF-STANDARD or MINI-STANDARD - a small tree with shorter trunk, its size is usually specified.
  • FEATHERED - These are trees with branches growing already from the base of the trunk and up along the stem.
  • GRASSES and PERENNIALS - Sizes given usually read the diameter of the pot or the clump, as specified.
LARGE PLANTS over 150 cmspecimens, screening and hedging shrubs

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