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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 Lombardy poplar lady poplar
Italian poplar
Synonyms Populus nigra 'Pyramidalis' Populus nigra var. italica
Family Salicaceae
Genus Populus are deciduous trees, mostly very fast-growing and large, with male and female catkins on separate trees, opening before the leaves. Male catkins are the more ornamental, female ones can be a nuisance from the cottony, wind-blown seeds
Details 'Italica' is a large, vigorous, narrowly columnar deciduous tree to 30m tall, with bright green ovate leaves and crimson male catkins before the leaves open in early spring
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 West-facing or South-facing
Exposure Exposed or Sheltered
Chalk
Clay
Loam
Sand
MoistureMoist but well-drained
SoilChalk, Clay, Loam, Sand
pHAcid, Alkaline, Neutral
Ultimate height Higher than 12 metres
Ultimate spread 4-8 metres
Time to ultimate height 20-50 years
Cultivation Grow in moist but well-drained, humus-rich, fertile soils but avoid planting in vicinity of buildings due to vigorous root system; it has the potential to become a nuisance. Very useful as a screen or as part of a shelter belt and grows very rapidly
Propagation Take hardwood cuttings in winter. Remove suckers in autumn or late winter
Suggested planting locations and garden types Hedging & Screens Architectural Coastal Cottage & Informal Garden
Pruning Pruning group 1; sucker removal in autumn or winter
Pests Susceptible to willow leaf beetle and caterpillars which may eat the foliage or bore into the bark
Diseases Susceptible to bacterial canker, a rust, honey fungus and silver leaf disease
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