Gleditsia triacanthos inermis 'Havre'

Northern Acclaim Honeylocust

Gleditsia triacanthos var. inermis ‘Havre’ is a fast-growing, thornless deciduous tree valued for its upright, broadly oval form and refined, fine-textured foliage. Leaves emerge fresh green in spring, provide light, filtered shade through summer, and turn soft yellow in fall, while blooms are small and not ornamentally significant. Its balanced habit and adaptability make it well suited for streets, parks, and large landscape plantings.

Type: Deciduous tree

Mature Size:
Width: 30–35 ft
Height: 40–50 ft
(10-year size: approx. 20–25 ft tall × 15–20 ft wide)

USDA Zones: 4a–9b
Form: Upright, broadly oval, open canopy
Light: Full sun
Soil: Highly adaptable; tolerates poor, compacted, and urban soils
Water: Moderate; drought tolerant once established

Wildlife: Attracts bees; provides light habitat for birds


Features & Landscape Uses


Upright oval form fits streets and open landscapes



Light, filtered shade allows turf and plantings below



Durable and adaptable for urban conditions



Suitable for parks, lawns, and avenues




Care
Low-maintenance and durable. Plant in full sun for best growth. Prune when young to establish a strong structure. Tolerates heat, drought, salt, and pollution. Generally pest- and disease-resistant, though occasional honeylocust pests may occur.

Plant type

Deciduous Tree, Shade Tree, Street Tree

Height

40-50'

Width

30-35'

Hardiness zones

4–8

Sunlight

Full Sun, Partial Shade

Growth rate

Moderate

Leaf color

Green

Fall color

Yellow

Soil

Highly Adaptable

Landscape use

Specimen, Street Tree

Shape

Oval

Deer resistant

Yes

Salt tolerant

Yes

Drought tolerant

Yes

10-year height

40-50"

10-year width

20-25'