Wisteria floribunda ('Black Dragon') 'VIOLACEA PLENA'

Wisteria floribunda ('Black Dragon') 'VIOLACEA PLENA'
Japanese wisteria

SIZE/TYPE	vine
USUAL HEIGHT	3-10m
USUAL WIDTH
LEAVES	deciduous broadleaf
COLOUR OF LEAVES	light green
FLOWERS	showy
COLOUR OF FLOWERS	violet
BLOOMING TIME	May - June
LOCATION	full sun
USDA zone (lowest)	5 (down to -29°C)
WINTER PROTECTION
FOR ZONE 5+6
FOR ZONE 7
BELONGS TO CATEGORIES	Deciduous broadleaf

Vioalcea Plena is a magnificent variety of Japanese wisteria. This climber bears 30-40 cm long racemes of double, deep violet, scented flowers that make this plant a fantastic show-stopper when in full bloom. In English-speaking countries it is often sold under another name: Black Dragon (and Yea Koku Riu in Japan). It is a late flowering cultivar that flowers along with leaves which is May to early June. It may take 3-5 years to start flowering. Being late in flowering it escapes late frosts. Exotic-looking deciduous leaves are mid green, pinnate and large.

It likes acid, reasonably fertile soil that is moist but well-drained. No fertilizing recommended. Abundant flowering can be achieved by regular pruning – cut back longest shoots several times a year. It needs full sun, very young plants can be damaged by harsh winters. Fully hardy to about -29°C (USDA zone 5).

Last update 16-05-2008

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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.