Tree Detail

Gleditsia triacanthos inermis


Honeylocust, Sunburst or Thornless

Gleditsia triacanthos inermis   'Sunburst'

Category: deciduous tree   Size: medium

Mature Size: 30 - 35' by 30 - 35'

Zone: Down to 4   Growth Rate: fast

Foliage: Lacey, golden yellow when young turning to bright green.

Elevation (if known): To 7,500'

Water: Water deeply and infrequently to enourage deep root growth. Medium.

Soil : Well-drained. Tolerates alkaline soil, but best in rich loams.

Sun: Sun

Comments: Even though listed as zone 4 and elevation 6,500' seems to do fine in Alamosa. Tolerates seasonal extremes, city pollution, and wind.

Warnings: Protect bark from sun scald (with shade or tree wrap) for at least two years after planting. Has thorny, forked spines. Susceptible to caterpillars. Defoliates in response to temperature changes and drought. Not wind tolerant.

Alamosa Tree Board Recommended? yes

Street Tree? yes   Street Tree Conditions: Do not plant too near sidewalks or curbs.

CO/NM native? no   Native to:

Known Locations:

Information Sources: Rky Mtn Gardener's Guide; CSU Extension; Little Valley Whole Sales Nursery; Alamosa Tree Board; Salida, CO, Tree Guide