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Grey poplar

Populus canescens · Salicaceae

The gardener's calendar

The right move for September

In autumn, ease off feeding and take the chance to clean up around grey poplar and prepare for winter.

JFMAMJJASOND Planting

ID card

Foliage
Deciduous
Blooming
Spring (catkins)
Adult size
20 to 30 m in height, 10 to 15 m in spread
Growth
Very fast
Hardiness
-25°C to -30°C, very hardy
Origin
Natural hybrid, Central and Eastern Europe
Soil type
Deep, fresh to moist, tolerates chalky soils

Care

Sunlight

Your Grey Poplar thrives in full sun, a condition essential for optimal growth and dense foliage. You can tolerate part-shaded locations, but vigor will decrease. Avoid overly confined areas; this species needs plenty of air space.

Watering

Water regularly during the first two years after planting to encourage root establishment. Once established, Grey Poplar is very tolerant of relative drought thanks to its deep roots. During prolonged dry periods, watering remains beneficial, particularly in continental climates.

Soil

Prepare a deep, fresh soil rich in organic matter. This species appreciates moist or periodically wet terrain, but fears permanent waterlogging. Amend with mature compost at planting time and it remarkably tolerates chalky soils.

Pruning

Pruning Grey Poplar is not essential; only remove dead, diseased, or poorly oriented branches in late winter. Make clean cuts without leaving stubs. On mature specimens, prefer light intervention to preserve the natural shape.

Fertilizing

Regular fertilization is necessary only on poor soils. An annual application of well-decomposed compost at the base is more than sufficient. In urban or degraded areas, balanced fertilizer applied in spring accelerates colonization and revitalization of the stand.

Diseases and Pests

Grey Poplar is robust, but can be affected by poplar rust (orange spots) or leaf beetles at high densities. Good hygiene and adequate air circulation limit these risks. Poplar cankers are rare on this variety.

Did you know?

Grey Poplar is a natural hybrid resulting from the cross between White Poplar (Populus alba) and Quaking Aspen (Populus tremuloides). Its name 'grisard' refers to the grey-white reverse of its leaves in the wind, a characteristic very visible in autumn. Widely planted in Europe from the 19th century as a windbreak and to purify marshy areas, it symbolizes vitality and landscape resilience.

Where to buy it

Best planted in autumn so the roots settle in before summer, or in early spring once the frost has passed. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, October, November.

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Tips generated and checked by Viridia — adapt them to your local climate.