Hydrangea quercifolia 'SNOWFLAKE' oak-leaved hydrangea
size/type
medium-sized shrub,medium-sized shrub
usual height
1,5-2m
usual width
1,5-2m
leaves
deciduous conifer
colour of leaves
flowers
showy
colour of flowers
blooming time
June-September
location
full sun to shade
soil type
neutral
soil moisture requirements
evenly moist (dislikes drought)
USDA zone (lowest)
5 (down to -29°C)
winter protection
for zone 5+6
for zone 7
categorized
Hydrangea
Oak-leaved hydrangeas come from South-Eastern USA and even though they are all "just" white once in a while a new variety offering an extra feature comes up and surprises us. Like for example this one called Snowflake.Description of the plant:
Snowflake is possibly the earliest flowering oak-leaved hydrangea bred so far. From early June, as soon as hot weather comes, it produces large, cone-shaped, pendent panicles for about two months. They are 30-40 cm long and composed of white, double, sterile flowers whose petals grow in up to 5 layers ending with a couple of small, almost green ones in the very centre. Fertile flowers are pale green and tiny and are often covered by sterile ones. It makes very attractive, shallowly lobed, deciduous, somewhat coarse leaves that are rich green with burgundy red specs and margins in spring and summer, and turning rich burgundy red already in late summer. They remain such for longer than 2 months before they fall down. Snowflake hydrangea grows rather fast.
Another nice feature about oak-leaved hydrangeas is their exfoliating bark which reveals cinnamon orange bark. Pruning is possible if you want to shape the plant or keep it small. Do it 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 but not summer drought. 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: 06-07-2015; 3-9-2015
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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.
