Honeylocust
Gleditsia triacanthos
Fabaceae · deciduous tree · native
You recognize Honeylocust by its feathery bipinnate leaves creating dappled shade, and its spiney trunk and branches that inspired the common name. The fragrant yellowish flowers appear before leaves in spring, followed by long brown pods. This fast-growing native prefers infrequent deep watering and adapts to poor soils.
Honeylocust tolerates full sun and a wide range of soil conditions, from clay to sand. Plant thornless cultivars where spines are problematic. Once established, it requires minimal watering even in drought. Monitor for stem borers and webworms. The tree's rapid growth and low maintenance make it valuable for difficult sites, though falling pods and leaflets require occasional cleanup.
Quick Facts
Phenological Calendar
| Stage | Typical Window |
|---|---|
| Bud break BBCH 07 | Feb 15-Mar 15 |
| Leaf emergence BBCH 11 | Mar 1-Apr 1 |
| Bloom start BBCH 61 | May 1-May 31 |
| Bloom end / petal fall BBCH 69 | May 15-Jun 15 |
| Fruit/seed development BBCH 71 | Jun 1-Aug 31 |
| Fruit/seed maturity BBCH 85 | Sep 1-Nov 30 |
| Fall color / leaf senescence BBCH 93 | Oct 1-Nov 15 |
| Dormancy BBCH 97 | Nov 15-Feb 28 |