Corylopsis spicata

Corylopsis spicata
Corylopsis spicata 
spike winterhazel
SIZE/TYPE medium-sized shrub
USUAL HEIGHT 1-2m
USUAL WIDTH 1-2m
LEAVES deciduous broadleaf
COLOUR OF LEAVES green
FLOWERS showy
COLOUR OF FLOWERS yellow
BLOOMING TIME March - April
LOCATION full to partial 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
Winter blooms
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Spike winterhazel is a rare shrub from Japan and Taiwan. It is especially popular among hobbyists and garden enthusiasts.

Its small, primrose yellow flowers are born in 10-15 cm long, pendent racemes from early March until end April, weather conditions pending. They are fragrant and do not mind light frosts or snow. The shrub is usually literally flooded with flowers bare branches every year. It has more flowers in one raceme compared to corylopsis pauciflora and more erect branches.

Deciduous leaves are ovate, upto 10 cm across, bronze when young, bright to dark green in summer and rich golden-yellow in autumn. The only resemblance to hazels is the shape of leaves. Otherwise it has nothing to do with nut-hazels as it belongs to another family (hamamelidaceae – witch hazels). They need no pruning. If some trimming required, do so immediately after flowering.

It grows slowly to an open bush, 2m tall and wide. The best soil type is acidic, moist and moderately fertile. Plant it in filtered sun or partial shade. Avoid windy locations and frost pockets. Hardy to about -27°C (USDA zone 5).

Last update 24-02-2010
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Corylopsis pauciflora
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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