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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 osier augers
basket willow common withy hemp willow velvet osier
Family Salicaceae
Genus Salix are deciduous shrubs and trees of diverse habit, with simple leaves and tiny flowers in catkins, male and female usually on separate plants. Some are valued for their brightly coloured winter shoots, others for their foliage or showy male catkins
Details S. viminalis is a fast-growing large shrub or small tree to 6m tall, with shiny greenish-yellow young shoots and narrow leaves that are silver-hairy beneath; slender greenish catkins open before the leaves, in late winter
Plant range Eurasia
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
H7
Full Sun
Aspect South-facing
Exposure Exposed or Sheltered
Clay
Loam
Sand
MoistureMoist but well-drained
SoilClay, Loam, Sand
pHAcid, Neutral
Ultimate height 4-8 metres
Ultimate spread 2.5-4 metres
Time to ultimate height 2-5 years
Cultivation Grows in most moist soils except those that are alkaline. A position in full sun is ideal
Propagation Propagate by greenwood cuttings or by hardwood cuttings in winter
Suggested planting locations and garden types Flower borders and beds Cottage & Informal Garden Coastal
Pruning Pruning group 1
Pests Aphids and caterpillars can be problematic
Diseases Willow anthracnose, scab, a canker and a rust may cause problems
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.