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Charme de Caroline, arbre indigène au feuillage vert.

Native tree Betulaceae

Native small woodland trees

American Hornbeam – Seeds

Name: American Hornbeam (Carpinus caroliniana) – Seeds
Brand: Akène
SKU: AKE-SEMGR1
Price: 4.99 CAD
Availability: InStock

Carpinus caroliniana

Product code : AKENE-0013

Exceptionally hardy native tree with smooth, fluted grey bark and yellow, orange, or red fall foliage. American hornbeam suits woodland gardens while supporting native birds, small mammals, and a wide range of beneficial insects.

Quantity: About 25 seeds
Exposure: Full sun, partial shade, or light shade
Life cycle: Perennial
Hardiness: Zones 3 to 8

Common nameAmerican Hornbeam

FamilyBetulaceae

GenusCarpinus

Speciescaroliniana

Cultivar

TypeNative tree

Botanical nameCarpinus caroliniana

Reproducible seedsYes

American Hornbeam (Carpinus caroliniana) is a native understory tree valued for its graceful form and smooth grey trunk, which develops distinctive muscular fluting with age. Its finely toothed, dark green deciduous leaves turn shades of yellow, orange, or red in autumn. Inconspicuous spring catkins are followed by attractive clusters of winged samaras. Slow to moderately growing, this American hornbeam reaches a manageable size for woodland gardens while providing ornamental interest throughout the seasons. Its sculptural bark remains especially appealing in winter after the leaves have fallen. Exceptionally hardy when properly established, it is well suited to cold Quebec and Canadian landscapes.

American hornbeam grows in full sun, partial shade, or light woodland shade, although it performs particularly well in conditions resembling a forest edge. It prefers deep, fertile soil enriched with organic matter, with an acidic to neutral pH and consistent moisture without prolonged waterlogging. Regular watering supports young trees during establishment, while an organic mulch protects the roots and helps keep the soil cool. Pruning is generally limited to removing dead, damaged, or poorly placed branches. In Quebec and other cold Canadian regions, select a site protected from drying winds and maintain even moisture during the first several growing seasons to encourage dependable establishment.

American hornbeam is an excellent specimen, understory tree, natural hedgerow component, or addition to woodland restoration projects. Its refined silhouette pairs naturally with downy serviceberry, alternate-leaved dogwood, native ferns, and bloodroot. Spring catkins provide pollen for insects, while the seeds, buds, foliage, and associated caterpillars offer food for birds and small mammals. Its roots can also help stabilize soil in moderately moist woodland settings. Sometimes called musclewood or blue beech because of its distinctive trunk, Carpinus caroliniana brings structure, vibrant fall colour, and meaningful wildlife value to sustainable landscapes designed to conserve native biodiversity.

Sowing guide

It all startswith a seed.

Sowing depth

4 to 5 mm

Spacing / density

6 to 9 m (20 to 30 ft)

Germination temperature

20 to 22°C

Germination time

Often slow to germinate after warm and cold pretreatments

Sowing period

Fall or spring after stratification

Propagation

Seed after warm and cold stratification

Cold stratification

Yes

Seed scarification

Yes

Growing method

Sow American Hornbeam seeds in autumn or reproduce their natural dormancy by applying warm stratification followed by cold stratification before spring sowing. Cover the seeds lightly with growing medium and maintain consistent moisture without overwatering. Germination may be slow and irregular due to natural dormancy. Young seedlings perform best in bright locations protected from excessive summer heat. Although slow growing, Carpinus caroliniana develops exceptional longevity, remarkable bark, and outstanding ornamental value, making it one of the finest native trees for woodland gardens and ecological landscapes.

Soil and care

The right care,at the right time.

Soil pH

Acidic to neutral

Minimum temperature

Approximately -40°C

Care level

Low

Watering

Regular during establishment; evenly moist soil

Soil type

Deep, fertile, moist, well-drained soil

Fertilization

Mature compost in spring; avoid overfeeding

Moisture

Medium; moist, well-drained soil

Seasonal care

In spring, remove only dead, broken, or poorly positioned branches to preserve the tree’s natural form. Renew the organic mulch over the root zone without piling it against the trunk. Water deeply during dry periods, especially through the first several years. During summer, monitor young container-grown plants closely because their growing medium can dry quickly. In fall, allow some fallen leaves to decompose naturally, enriching the soil and sheltering beneficial organisms. Once established, American hornbeam requires little intervention and normally maintains an attractive structure without intensive pruning or fertilization.

Container growing

A garden,within reach.

Recommended pot size

50 to 75 cm (20 to 30 in)

American Hornbeam can be grown in a deep container at least 50 cm (20 in) deep during its first few years to encourage strong root development. Use a rich growing medium high in organic matter that retains moisture while providing excellent drainage. As the tree matures, transplanting into the landscape is recommended to allow full canopy development. A layer of mulch helps maintain cool soil and reduces watering requirements.

Bloom and dimensions

Its place,in your garden.

Mature height

12 m

Width / spread

9 m

Flower color

Greenish yellow

Foliage color

Dark green; yellow, orange, or red in fall

Foliage type

Deciduous

Growth rate

Slow to moderate

Growth habit

Rounded, spreading, and often multi-stemmed

Fragrance

Bloom period

Inconspicuous spring catkins

Fruiting

Clusters of winged samaras in late summer

Days to maturity

Several years to maturity

Harvest

September to October

Garden associations

In goodcompany.

Companion plants

Downy serviceberry, alternate-leaved dogwood, bloodroot, ostrich fern

Plants to avoid

Avoid plants requiring very dry soil

Frequently asked questions

Your questions,answered.

When should American hornbeam seeds be sown?

American Hornbeam seeds benefit from warm stratification followed by cold stratification to overcome dormancy. They can then be sown in spring or naturally overwintered outdoors.

Is American hornbeam native to Canada?

Yes. Carpinus caroliniana is native to southern regions of Canada and is highly valued for supporting local biodiversity.

Can American hornbeam grow in partial shade?

Yes. American Hornbeam grows exceptionally well in partial shade and naturally occurs in open woodlands and forest edges.

Does American hornbeam attract wildlife?

Yes. Its flowers provide pollen for beneficial insects, while its winged seeds feed a variety of birds and small mammals.

Why plant an American hornbeam?

Its elegant habit, distinctive muscle-like bark, brilliant autumn foliage, and exceptional ecological value make American Hornbeam one of the finest native trees for natural and sustainable landscapes.

Wildlife and pets