Gleditsia Species, Honey Locust, Sweet Locust, Three-Thorned Acacia
Gleditsiatriacanthos

Family: Fabaceae (fab-AY-see-ee)
Genus: Gleditsia (gleh-DIT-see-uh)
Species: triacanthos (try-a-KAN-thos)

Synonym:Acacia triacanthos

Category
Trees

Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater

Sun Exposure
Full Sun

Foliage
Deciduous

Foliage Color

Height
over 40 ft. (12 m)

Spacing
over 40 ft. (12 m)

Hardiness
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)

Where to Grow
Grow outdoors year-round in hardiness zone

Danger
Plant has spines or sharp edges; use extreme caution when handling

Bloom Color
Pale Green
Chartreuse (yellow-green)
Inconspicuous/none

Bloom Characteristics

Bloom Size

Bloom Time
Mid Spring
Late Spring/Early Summer

Other details
May be a noxious weed or invasive

Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information
Non-patented

Propagation Methods
From seed; direct sow outdoors in fall
Self-sows freely; deadhead if you do not want volunteer seedlings next season

Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Properly cleaned, seed can be successfully stored