Honeylocust

Gleditsia triacanthos

Native to:
Canada, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Fabaceae
Genus:
Gleditsia
Species:
Gleditsia triacanthos
USDA Symbol:
GLTR

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub , Tree
Height:
2500 cm
Light Requirements:
Part Shade
Drought Tolerance:
High
Bloom Months:
may,jun
Bloom Colors:
green, cream
Food Forest:
Contains edible parts

Wildlife Benefits

Caterpillars:
★★★★☆ Recorded caterpillar host plant (HOSTS Database)

Keystone Species Ranking

Caterpillar Keystone:
★★★★☆ Butterfly & moth species supported by this genus (NWF)

Host Plant for Caterpillars

Bagworm moth (Thyridopteryx ephemeraeformis), Betrothed Underwing (Catocala innubens), Bisected Sphinx Moth (Syssphinx bisecta), Blanchard's Prominent Moth (Syssphinx blanchardi), Burns' buck moth (Hemileuca burnsi), Cecropia moth (Hyalophora cecropia), Clinton's Underwing (Catocala clintonii), common gray (Anavitrinella pampinaria), common spring moth (Heliomata cycladata), Fall webworm (Hyphantria cunea), Genista Broom Moth (Uresiphita reversalis), Gypsy moth (Lymantria dispar), Hubbard's silk moth (Syssphinx hubbardi), Imperial Moth (Eacles imperialis), Io moth (Automeris io), Juno buckmoth (Hemileuca juno), Little Underwing (Catocala minuta), Magdalen Underwing (Catocala illecta?), Magdalen Underwing (Catocala illecta), Mellilla xanthometata, mimosa webworm (Homadaula anisocentra), moon-lined moth (Spiloloma lunilinea), Morning-glory prominent moth (Schizura ipomoeae), Mountain Sphinx Moth (Syssphinx montana), navel orangeworm (Amyelois transitella), Peppered Moth (Biston betularia), Periploca gleditschiaeella, Phtheochroa leguminana, Polyphemus moth (Antheraea polyphemus), raspa sphinx moth (Syssphinx raspa), Riley's lappet moth (Heteropacha rileyana), Semiothisa ocellinata, Semiothisa snoviata, sparganothis fruitworm moth (Sparganothis sulfureana), Spring cankerworm (Paleacrita vernata), Syssphinx heiligbrodti, Syssphinx quadrilineata, Tlascala reductella, tricolor buckmoth (Hemileuca tricolor), Two-colored sossphinx (Syssphinx bicolor), Unicorn caterpillar moth (Schizura unicornis), Variegated cutworm (Peridroma saucia), White-marked Tussock Moth (Orgyia leucostigma), woodland leafroller (Pandemis lamprosana), Yellownecked caterpillar (Datana integerrima), Zale undularis, Silver-spotted Skipper (Epargyreus clarus)

Reported Fauna Sightings

Moths:Betrothed Underwing (Catocala innubens), Little Underwing (Catocala minuta), moon-lined moth (Spiloloma lunilinea), Riley's lappet moth (Heteropacha rileyana), Ufeus plicatus

Garden & Ecology Notes

Wildlife Value:
birds, small mammals, deer
Salt Tolerant:
Yes
Fragrant:
Yes
Fall Color:
yellow
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts vigorously from the root crown following fire. Tolerates moderate fire regimes typical of savanna and woodland edges.

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
6.0 - 8.0 (neutral to slightly alkaline)
Drainage:
tolerates poor drainage
Moisture:
dry to moderate
Notes:
Adaptable to various soil types including clay and sandy soils.

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days
Scarification:
Seed coat scarification required before sowing
Germination Time:
14–28 days
Notes:
Scarification (acid treatment or mechanical abrasion) followed by cold stratification significantly improves germination. Hot water soak is an alternative scarification method.

The above propagation data sourced from Claude AI

Pre-treatment: Seeds germinate at 30/20 C. Germination was equal in light and dark.

Source: npn.rngr.net

ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months. Requires scarification. | Requires soaking 24-48 hrs; discard floaters.

Source: Ontario Rock Garden & Hardy Plant Society