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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.
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Other common names Japanese maple 'Osakazuki'
Synonyms Acer palmatum (Elegans Group) 'Osakazuki' Acer palmatum (Heptalobum Group) 'Osakazuki'
Acer palmatum 'Taihai'
Family Sapindaceae
Genus Acer can be deciduous trees or large shrubs with paired, often palmately-lobed leaves and small flowers followed by characteristic winged fruits. Many have fine autumn colour, and some have ornamental stems
Details '?sakazuki' is a large deciduous shrub of rounded habit. Leaves relatively large, 7-lobed, green but turning to brilliant orange-scarlet in autumn. Flowers and fruits small, red
Foliage Deciduous
Habit Bushy
Hardiness
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H6
Partial Shade
Full Sun
Aspect South-facing or West-facing or East-facing
Exposure Sheltered
Loam
Clay
Sand
Chalk
MoistureMoist but well-drained
SoilLoam, Clay, Sand, Chalk
pHAcid, Neutral
Ultimate height 2.5-4 metres
Ultimate spread 2.5-4 metres
Time to ultimate height 10-20 years
Cultivation Grow in a moist but well-drained soil. Water in summer if necessary. Leaf colour is best in partial shade, although full sun can be tolerated. Leaf scorch can be caused by lack of soil moisture or excessive exposure
Propagation Propagate by grafting or softwood cuttings
Suggested planting locations and garden types Low Maintenance Architectural City & Courtyard Gardens Cottage & Informal Garden Patio & Container Plants Rock Garden
Pruning Pruning group 1
Pests Aphids and horse chestnut scale may be a problem
Diseases Verticillium wilt sometimes a problem
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
Japanese maple 'Osakazuki'
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