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Peuplier deltoïde, arbre indigène au feuillage vert.

Native riparian tree Salicaceae

Fast-growing native trees for reforestation

Eastern Cottonwood – Seeds

Name: Eastern Cottonwood (Populus deltoides) – Seeds
Brand: Akène
SKU: AKE-SEMGR1
Price: 4.99 CAD
Availability: OutOfStock

Populus deltoides

Product code : AKENE-0039

Large, very fast-growing native tree with fluttering triangular leaves and a broad crown. Eastern cottonwood stabilizes shorelines, creates shade quickly, and provides important wildlife habitat.

Quantity: About 25 seeds
Exposure: Full sun
Life cycle: Perennial
Hardiness: Zones 3 to 8

Common nameEastern Cottonwood

FamilySalicaceae

GenusPopulus

Speciesdeltoides

TypeNative riparian tree

Botanical namePopulus deltoides

Reproducible seedsYes

Eastern Cottonwood (Populus deltoides) is a large, fast-growing native tree recognized for its imposing form, fluttering foliage, and major ecological role in riparian landscapes. Large triangular leaves are glossy green with finely toothed margins and move in the slightest breeze before turning yellow in fall. Catkins appear in spring before or as the leaves emerge. Female trees later produce capsules that release numerous cottony seeds. Reaching 20 to 28 m, this exceptionally hardy tree quickly creates shade, vertical structure, and a strong natural presence in large open sites, floodplains, and restoration landscapes.

Eastern cottonwood prefers full sun and deep, rich soil that remains moist to wet, especially in floodplains and along riverbanks. It tolerates temporary flooding and grows rapidly where its roots receive consistent moisture. Regular watering is essential during the first several years, particularly in drier sites. Organic mulch helps conserve soil moisture when kept away from direct contact with the trunk. Pruning should be limited to structural training and the removal of dead, damaged, or poorly placed branches. In Quebec, this tree requires a very large site well away from buildings, underground services, pavement, and restricted planting spaces.

Eastern cottonwood suits riparian buffers, reforestation projects, restored floodplains, and large properties where its rapid growth can be used effectively. Its extensive root system helps stabilize soil and reduce erosion, while the broad crown provides shade, nesting sites, and shelter for many wildlife species. The foliage also feeds the caterpillars of several native butterflies and moths. It pairs naturally with red-osier dogwood, steeplebush, blue flag iris, and pussy willow to recreate diverse, resilient riparian plant communities. Its primary value lies in habitat creation, ecological restoration, and rapid establishment of woody cover.

Sowing guide

It all startswith a seed.

Sowing depth

Surface sow

Spacing / density

8 to 12 m (26 to 39 ft)

Germination temperature

20 to 24°C

Germination time

5 to 15 days with very fresh seed

Sowing period

Spring immediately after seed collection

Propagation

Fresh seed or stem cuttings

Growing method

Sow Eastern Cottonwood seeds in spring after a short soaking period to improve hydration. Surface sow because the seeds require light for successful germination. Maintain temperatures between 20 and 24°C (68 to 75°F) and keep the growing medium consistently moist throughout germination. Seedlings usually emerge within 5 to 15 days under ideal conditions. Young trees thrive in deep, fertile, moist soils and are especially well suited to reforestation projects, riparian restoration, and erosion control.

Soil and care

The right care,at the right time.

Soil pH

Acidic to neutral

Minimum temperature

Approximately -40°C

Care level

Low in a suitable site

Watering

Regular and consistent during establishment

Soil type

Deep, rich, moist to wet, periodically flooded soil

Fertilization

Light spring compost for young trees

Moisture

Medium to high; moist soil

Seasonal care

In spring, inspect the young tree’s structure and remove dead, broken, or poorly positioned branches. Maintain mulch over the root zone without piling it against the trunk. During the first several years, water deeply and regularly through dry periods to support rapid growth and root establishment. Monitor suckers, weak branches, and wind damage. In fall, allow some leaves to decompose naturally and enrich the soil. Once established, the tree requires little routine care, although its large mature size justifies periodic safety inspections and structural monitoring.

Container growing

A garden,within reach.

Recommended pot size

60 to 100 L (16 to 26 gal)

Container growing is suitable only during the first years because Eastern Cottonwood quickly develops into a very large tree. Use a deep, oversized container filled with a rich growing medium that retains moisture well. Frequent watering is essential because this species naturally grows in moist soils and rapidly develops an extensive root system. For long-term success, transplant into the ground as soon as practical.

Bloom and dimensions

Its place,in your garden.

Mature height

28 m

Width / spread

18 m

Flower color

Greenish red depending on plant sex

Foliage color

Glossy green; yellow in fall

Foliage type

Deciduous

Growth rate

Very fast

Growth habit

Large upright tree with very rapid growth

Fragrance

Slightly balsamic buds

Bloom period

Spring catkins before full leaf emergence

Fruiting

Capsules releasing cottony wind-dispersed seeds

Harvest

May to June; sow immediately

Garden associations

In goodcompany.

Companion plants

Red-osier dogwood, steeplebush, blue flag iris, pussy willow

Plants to avoid

English lavender, cotton lavender, rockroses, Adam’s needle

Frequently asked questions

Your questions,answered.

When should eastern cottonwood seeds be sown?

Eastern Cottonwood seeds are best sown in spring shortly after harvest because they remain viable for only a short period. Fresh seed produces the highest germination rates.

Why use eastern cottonwood in reforestation?

Its exceptionally rapid growth allows disturbed sites to be restored quickly while creating valuable wildlife habitat. Its extensive root system also stabilizes soil very effectively.

Can eastern cottonwood grow in wet soil?

Yes. Eastern Cottonwood is naturally adapted to moist soils and areas that experience periodic flooding. It commonly grows along rivers and floodplains.

Does eastern cottonwood support wildlife?

Yes. Its buds, young shoots, and foliage provide food for many wildlife species, while its large canopy offers nesting sites and shelter for birds.

Can eastern cottonwood be planted near a house?

Yes. Once established, Eastern Cottonwood is hardy and requires very little maintenance. Because of its large mature size and rapid growth, it should be planted only where sufficient space is available.

Wildlife and pets