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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 common ash European ash
ache
Family Oleaceae
Genus Fraxinus are medium-sized to large, mostly deciduous trees with attractive pinnate leaves, sometimes conspicuous flowers and autumn colour, and distinctive winged fruits
Details F. excelsior is a vigorous deciduous tree to 25m, with pale brown bark, dark green, pinnate leaves and small deep purple flowers, followed by conspicuous bunches of winged fruits in late summer and autumn
Plant range Europe Caucasus
Foliage Deciduous
Habit Spreading / Branched
Hardiness
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H6
Full Sun
Aspect North-facing or East-facing or South-facing or West-facing
Exposure Exposed or Sheltered
Chalk
Clay
Sand
MoistureMoist but well-drained
SoilChalk, Clay, Sand
pHAlkaline, Neutral
Ultimate height Higher than 12 metres
Ultimate spread wider than 8 metres
Time to ultimate height 20-50 years
Cultivation Excellent for woodland and coastal gardens where there is an alkaline or neutral soil and full sun
Propagation Propagate by seed or grafting
Suggested planting locations and garden types Low Maintenance
Pruning Pruning group 1
Pests Generally pest free
Diseases Ash dieback has recently been found in the UK. Restrictions have been put in place (from 29 October 2012) regarding both the importation of ash from abroad and the movement of ash within the UK
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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.