Hydrangea quercifolia 'AMETHYST'

Hydrangea quercifolia
Hydrangea quercifolia 'AMETHYST'
oak-leaved hydrangea
SIZE/TYPE medium-sized shrub
USUAL HEIGHT 1.3-1.5m
USUAL WIDTH 1.3-1.5m
LEAVES deciduous broadleaf
COLOUR OF LEAVES green
FLOWERS showy
COLOUR OF FLOWERS white
BLOOMING TIME June - August
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
Summer blooms
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Amethyst oak-leaved hydrangea was bred by a renowned botanist and hydrangea lover Michael Dirr. It makes very attractive, deeply lobed foliage with conspicuous tips. They are deciduous, rich green in spring and summer with some burgundy shades, turning striking wine red in early autumn. These eye-catching leaves are held well throughout almost the entire autumn season, falling down very late – among the last deciduous shrubs.

The inflorescence is large – up to 30 cm long, somewhat pendent on young plants but strong and upright on older and well-established shrubs. It predominantly consists of sterile flowers – those are the 4-petalled creamy white ones. They turn red quite quickly, without fading, about a month after opening, and last until early to mid autumn.

The shrub is constructed from strong, mainly upright branches with some exfoliating bark, and keeps a compact shape and bushy without pruning. Still, if you need to prune or shape the plant do so immediately after flowering because it flowers on previous year’s wood.

Oak-leaved hydrangea comes from moist and boggy sites along streams and river banks, therefore, it will require similar conditions in the garden. Grow it in constantly moist soil, in full sun or part shade, it can even take temporary waterlogging. It is not fussy about soil pH or quality – it will grow even in clay and compacted ground, but more slowly. It is fully hardy to about -29°C (USDA zone 5).

Last update: 29-12-2013
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Hydrangea quercifolia
Hydrangea quercifolia
Hydrangea quercifolia
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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