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We have combined these two powerful search tools into a single Find a Plant service searching over 250,000 plant records.
Virtually all of the features of the old searches are still available and in addition we have added several new features to create a more comprehensive and user friendly search experience.
When using this search
Search by plant name, key attributes or both to find plant details and a list of
AGM plants have been through a rigorous trial and assessment programme. They are:
This plant will provide nectar and pollen for bees and the many other types of pollinating insects.
It is included in an evolving list of plants carefully researched and chosen by RHS experts. Divided into 3 groups these lists, linked below, are maintained by a team of RHS staff and are reviewed annually.
the RHS today and get 12 months for the price of 9
Other common names
Quercus × richteri
Quercus can be deciduous or evergreen trees or shrubs, with entire, lobed or toothed leaves; flowers inconspicuous, followed by characteristic acorns; sometimes good autumn colour
Q. coccinea is a substantial deciduous tree, ultimately to 24m in height, with large leaves, 7.5-15cm long, deeply 7- sometimes 9-lobed, and coarsely toothed at the apex. Leaves are dark green above, paler beneath, both sides shining, becoming scarlet in autumn, the colour long-lasting. Flowers are yellow-green catkins, in spring. Acorns, if produced, to 2.5cm long and nearly as wide, partly enclosed in a deep, thin-edged cup
E USA, S Canada
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
Aspect South-facing or West-facing or East-facing
Exposure Sheltered or Exposed
MoistureWell-drained, Moist but well-drained
SoilLoam, Sand, Clay, Chalk
Higher than 12 metres
wider than 8 metres
Time to ultimate height
more than 50 years
Grow in deep, fertile, well-drained soil. A fast growing spreading deciduous tree
Propagate by seed, sowing as soon as ripe, in a coldframe or grafting in mid-autumn or early winter
Suggested planting locations and garden types
Pruning Pruning group 1
Pests May be attacked by aphids and gall wasps
May be subject to oak wilt and powdery mildews
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.