Imperial® Honeylocust

Height: 30–40 ft

Spread: 30–35 ft

Hardiness: USDA Zones 3–9

Fall Color: Soft to bright yellow.

Soil Type: Extremely adaptable. Tolerates clay, loam, sand, and alkaline soils. Withstands drought once established. Prefers moist, well‑drained soils but tolerates poor urban conditions.

Exposure Type: Full sun, Excellent heat, wind, and drought tolerance.

Category:

Description

Gleditsia triacanthos var. inermis ‘Imperial’ / Imperial® Honeylocust

Planting Points: A compact, rounded cultivar—smaller and denser than ‘Shademaster’, making it great for residential landscapes. Seedless and thornless, with fine, fern‑like foliage that casts a light, filtered shade ideal for turf. Very tolerant of pollution, salt, compaction, and urban stresses. Moderate growth rate with a naturally broad, low‑branched form. Requires minimal pruning—tree forms a strong, balanced crown on its own. Resistant to common honey locust pests (leafhopper, pod gall midge, cankers). Water deeply during establishment; thereafter, extremely low‑maintenance. Good replacement option for ash trees in urban/suburban landscapes.

Siting This Tree: Ideal for medium‑sized residential yards, providing shade without overwhelming the space. Works well in parks, boulevards, parking lot islands, and commercial landscapes. Excellent for heat‑exposed or drought‑prone sites. Perfect for filtered shade settings where perennials or turf need sunlight. Avoid very wet, poorly drained soils.