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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 dawn redwood
Synonyms Metasequoia honshuenensis
Family Cupressaceae
Genus Metasequoia is a large deciduous tree with reddish-brown fibrous bark and soft, pale green linear leaves arranged in two ranks on the shoots, colouring beautifully in autumn
Details M. glyptostroboides is a vigorous deciduous conifer making a large, narrowly conical tree to 25m, with flat sprays of narrow, pale green leaves that turn brownish-pink and yellow in autumn. Cones and flowers insignificant
Plant range C China
Foliage Deciduous
Habit Columnar/Upright
Hardiness
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H7
Full Sun
Aspect South-facing or West-facing or North-facing or East-facing
Exposure Exposed or Sheltered
Chalk
Clay
Loam
Sand
MoistureMoist but well-drained, Poorly-drained
SoilChalk, Clay, Loam, Sand
pHAcid, Alkaline, Neutral
Ultimate height Higher than 12 metres
Ultimate spread wider than 8 metres
Time to ultimate height 20-50 years
Cultivation Grow in moist but well-drained soil. Tolerant of waterlogged soils. Excellent specimen tree grows quickly to considerable height
Propagation Propagate by seed, hardwood or semi-hardwood cuttings
Suggested planting locations and garden types Low Maintenance
Pruning No pruning required
Pests Generally pest free
Diseases Generally disease free
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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.