Celtis occidentalis

Features and care

*Celtis occidentalis*, known as the American hackberry, is a fast-growing deciduous tree with a broad crown. It is used to provide shade in parks and urban spaces, and its spreading habit makes it suitable for locations where there is sufficient space for the branches to develop.

Its alternate leaves are oval to lanceolate, rough, and green, with serrated margins and yellow autumn color. The spring flowers are small and yellow-green. The fleshy fruits, ranging from reddish to purple, ripen late in the season and add interest to the densely branched crown.

It thrives in sunny or partially shaded locations and reaches a height of 12 to 20 meters. It adapts to soil ranging from dry to moist—provided it is well-drained—and requires moderate, deep, and infrequent watering. It tolerates high-humidity environments without requiring waterlogged soil. Within USDA zones 2–9, it demonstrates good frost resistance, even in regions with harsh winters.

At Ornacom we cultivate each specimen directly, guaranteeing a balanced size and abundant flowering from the first years of planting.

Extended species profile

Verified cultivation data, designed so that any visitor can understand at a glance whether the plant is suitable for their climate and garden.

Crop

Exposure

Full sun or partial shade

Irrigation

ORN-RIEGO 3/5 · medium — adaptable; deep and spaced irrigation, without keeping the soil saturated

Soil / moisture

Dry to moist; well-drained

Bloom

Discreet

Climate

USDA Hardiness

Zones 2 – 9

Compatible climates

Cfa, Dfa, Dfb, BSk

Tolerance to humid climate

ORN-HUM 4/5 · high

Maintenance

Development

ORN-ALT 5/5 · 12–20 m · fast-growing

Pests

ORN-PLAGA 3/5 · medium — sucking/boring insects and foliar or root fungi; monitor for water stress

Pass

ORN-FEEDING 2/5 · low — prioritize soil and organic matter; fertilize in spring only according to analysis and vigor

  • Warning

Highly adaptable; it may exhibit witch’s broom and vigorous roots.

Extended species profile

Verified cultivation data, designed so that any visitor can understand at a glance whether the plant is suitable for their climate and garden.

Crop

Exposure

Full sun or partial shade

Irrigation

ORN-RIEGO 3/5 · medium — adaptable; deep and spaced irrigation, without keeping the soil saturated

Soil / moisture

Dry to moist; well-drained

Bloom

Discreet

Climate

USDA Hardiness

Zones 2 – 9

Compatible climates

Cfa, Dfa, Dfb, BSk

Tolerance to humid climate

ORN-HUM 4/5 · high

Maintenance

Development

ORN-ALT 5/5 · 12–20 m · fast-growing

Pests

ORN-PLAGA 3/5 · medium — sucking/boring insects and foliar or root fungi; monitor for water stress

Pass

ORN-FEEDING 2/5 · low — prioritize soil and organic matter; fertilize in spring only according to analysis and vigor

  • Warning

Highly adaptable; it may exhibit witch’s broom and vigorous roots.

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