Ilex x altaclerensis 'WILSONII'

Ilex x altaclerensis
Ilex x altaclerensis 'WILSONII'
Highclare holly
SIZE/TYPE taller shrub
USUAL HEIGHT 2-4m
USUAL WIDTH 2-4m
LEAVES evergreen broadleaf
COLOUR OF LEAVES green
FLOWERS insignificant or non-blooming
COLOUR OF FLOWERS
BLOOMING TIME
LOCATION full to partial sun
USDA zone (lowest) 6   (down to -23°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 Evergreen broadleaf
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Highclare holly is an evergreen hybrid between ilex aquifolium and ilex perado, probably from England. All varieties of this hybrid are quite unique and have almost spineless, large leaves and often vigorous growth.

Wilsonii is a rare variety of Highclare holly. It bears 5-7 cm long, oval to oblong, deep green and very glossy leaves. They are mildly spiny when young and lose spines as the plant grows taller than 1m, then new leaves become mostly entire with just one sharp tip. It is a female variety that bears profusion of large, vivid red berries if a male pollinator is nearby.

It grows medium fast, making strong, erect branches which form an upright, widely oval shrub. Under ideal conditions, e.g. in Benelux countries and England, it may grow quite tall and wide, whereas in our zone it makes a shrub that seldom exceeds 4m when 20-25 years old. It can be pruned and shaped to maintain smaller size. Do not cut into old wood. It takes a considerable amount of time to repair its shape. Pruning in April will encourage new growths, trimming by end July is ideal for shaping.

Grow hollies in moist but well-drained, light, acidic and fertile soil. They can take periods of drought once established but absolutely hate water-logging: their leaves fade to yellow and fall down leaving bare branches. Hollies do best in full sun but can also grow in part shade and shade where their shape may be distorted. If you live in a region with cold winters and long-lasting frost we recommend growing it in position sheltered from drying winds, and shaded from winter sun if possible. Hardy to USDA zone 6.

Last update 04-10-2010
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Ilex x altaclerensis height 80-100 cm, width 40-50 cm
STANDARD
CHLUMEC BY CAR
Ilex x altaclerensis height 125-150 cm, width 60-80 cm
De Luxe
PRAGUE BY CAR

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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.
LARGE PLANTS over 150 cmspecimens, screening and hedging shrubs

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