How to Grow Hackberry

Hackberry

Celtis occidentalis

tree

Hackberry is a deciduous hardwood tree native to North America, known for its adaptability to various growing conditions and dense canopy that provides excellent shade. It grows to 40-60 feet tall with a broad, spreading crown and small dark purple berries that attract wildlife. The tree is valued for its resilience, longevity, and ability to thrive in urban environments.

Growing Conditions

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Sun: Full sun (6-8 hours daily) to partial shade; develops denser canopy in full sun

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Water: Moderate water needs once established; drought-tolerant. Water regularly during first 1-2 growing seasons. Avoid waterlogged conditions.

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Spacing: 40-50 feet apart (mature crown spread) inches

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Days to maturity: 5-10 years to reach significant shade-providing size; 30-50+ years for full maturity

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Planting depth: Plant at same depth as root ball; top of root ball level with or slightly above soil surface

Soil

Type: Adaptable to various soil types; prefers well-draining loamy soil but tolerates clay, sandy, and compacted soils

pH: 6.0-7.5

Amendments:

Compost for transplant establishment Mulch to retain moisture and regulate temperature

Growing Zones

Find your zone →

Zones 2-9; most vigorous in zones 3-8

2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a

Growth Stages

Establishment

1-2 years

Young sapling with thin trunk and sparse branching; light green foliage emerging in spring

Water deeply and regularly (1-2 inches per week). Mulch around base. Stake if needed. Avoid heavy pruning.

Juvenile Growth

2-5 years

Tree develops multiple scaffold branches; crown widens and becomes more defined; leaves fully mature

Continue regular watering. Prune to establish strong branching structure and remove crossing limbs. Fertilize sparingly.

Canopy Development

5-10 years

Dense branching structure forms; foliage becomes thick and lush; crown spreads significantly

Thin interior branches to improve air circulation and reduce disease. Prune dead or diseased wood. Minimal supplemental watering needed.

Flowering and Fruiting

Annually after year 3-4

Inconspicuous small green flowers appear in spring; small dark purple drupes develop by late summer, attracting birds

No special care needed. Prune only to maintain structure. Monitor for pests attracted to fruit.

Mature Shade Tree

20+ years

Large spreading canopy providing substantial shade; thick trunk with furrowed bark; reliable annual fruiting and bird activity

Minimal care required. Remove dead branches. Maintain mulch layer. Prune for clearance over roads or walkways as needed.

Companion Planting

Plan your garden →

Plant with:

Eastern Redbud (understory planting) Pawpaw (shade-tolerant shrub) Serviceberry Shade-tolerant groundcovers (Ajuga, Vinca minor) Hosta (shade garden) Ferns (shade garden)

Avoid planting near:

Black Walnut (allelopathic interference) Plants requiring full sun and low humidity Shallow-rooted plants that compete for water

Common Pests

Remove affected leaves; spray with insecticidal soap in early spring; generally causes minimal damage to tree health
Spray with neem oil or insecticidal soap; prune heavily infested branches; encourage natural predators
Apply dormant oil spray in late winter; prune infested branches; introduce parasitic wasps
Prune out affected branches; maintain tree vigor with proper watering; rarely requires chemical intervention

Uses

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Wildlife Habitat & Food

Wildlife

Hackberry's abundant drupes provide crucial food for over 60 bird species, including robins, cedar waxwings, and mockingbirds. The dense foliage offers shelter and nesting sites for numerous bird and insect species. [source]

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Shade & Cooling

Household

The dense, spreading canopy provides substantial shade that reduces air temperatures and lowers cooling costs for buildings. A mature hackberry can reduce ambient temperature by 5-9°F in its vicinity. [source]

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Edible Fruit

Culinary

The small drupes are edible with a sweet, date-like flavor and were consumed by Native Americans. Modern foragers collect the fruit for eating fresh or drying. [source]

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Wood Products

Craft

Hackberry wood is used for tool handles, furniture, and veneer due to its strength and shock resistance. It is also suitable for firewood and charcoal production. [source]

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Traditional Medicine

Medicinal

Native American tribes used hackberry preparations for various medicinal purposes. Bark and fruit were used in traditional remedies, though modern medicinal applications are limited. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Hackberry is not harvested for edible fruit; fruit is naturally dropped in fall and consumed by wildlife. If collecting for propagation, harvest berries in late summer/early fall when dark purple, extract seeds, and stratify for 60 days cold moist treatment before spring planting.

Fun Facts

🌱 Hackberry can live 150+ years and is one of the most urban-tolerant trees, thriving in sidewalk cracks and compacted soil where most trees fail.
🌱 The tree's scientific name, Celtis occidentalis, references the Celt people of ancient Europe, though hackberry is native only to North America.
🌱 Hackberry is the primary host plant for the Mourning Cloak and Tawny Emperor butterfly caterpillars, making it crucial for butterfly conservation.

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