• Photo of Gleditsia triacanthos (Gleditsia triacanthoss)

Plant Profile: Gleditsia triacanthos

Taxonomy: Gleditsia triacanthos

Names

Common Honey Locust, Honeylocust, Honey Locust, Honey Shucks Locust, Sweet Bean Tree, Sweet Locust, Thorny Locust

  • Photo of Gleditsia triacanthos (Gleditsia triacanthoss)

Phonetic Spelling:gleh-DIT-see-uh try-a-KAN-thos

Genus:Gleditsia

Species:triacanthos

Family:Fabaceae

Gleditsia triacanthos, commonly known as the Honey locust, is a sizable tree belonging to the pea family, prevalent across North Carolina, with the exception of the higher mountainous regions. This tree can reach heights of up to 80 feet, featuring a single trunk that measures between 2 to 3 feet in diameter, topped with a broad, flat crown that provides light shade conducive to the growth of turf grass beneath it. While it may occasionally be found in forested areas, it is more frequently located alongside roads and in open fields.

For optimal growth, plant the Honey locust in full sunlight within well-drained, moist soil rich in organic matter. Although it can tolerate partial shade, it does not thrive in full shade. This species is adaptable to a range of soil types and moisture levels. Its trunk and branches are equipped with robust thorns, which can grow up to 3 inches long, either singularly or in clusters of three. The tree exhibits remarkable tolerance to salt and wind, is drought-resistant once established, and is also resilient against deer damage.

The leaflets of the Honey locust are small and do not require raking after they fall, but the seed pods can be unsightly while on the tree and create a mess on lawns and pathways when they drop. Due to its thorns and seed pods, this tree is generally not recommended for landscaping. It has the potential to spread rapidly, becoming a weed issue in certain pasture areas, and mowing or cutting can lead to increased sprouting. Consider looking for thornless varieties, such as Gleditsia triacanthos var. inermis, or cultivars that are both thornless and podless, like 'Sunburst'.

In terms of pests and diseases, Honey locusts may face challenges from borers and web worms. They are also prone to various issues, including leaf spot, canker, witches’ broom, powdery mildew, and rust.

Gleditsia triacanthos Feature Summary

Gleditsia triacanthos Image Gallery

Tags

#thorns
#fall color
#wildlife plant
#large tree
#moths
#nectar plant
#salt tolerant
#tsc
#high maintenance
#air pollution tolerant
#street tree
#food source
#fast growing
#NC native
#deer resistant
#long lifespan
#Braham Arboretum
#nesting sites
#larval host plant
#food source winter
#food source fall
#fall color yellow
#butterfly friendly
#tsc-t
#bee friendly
#non-toxic for horses
#non-toxic for dogs
#non-toxic for cats
#black walnut toxicity tolerant

Similar Plants

Gleditsia triacanthos is often confused with:

Gleditsia triacanthos Feature Summary

Attributes
Coarse grained, hard, strong wood is moderately resistant to decay. Timber used as fence posts, railroad ties, furniture, shipping pallets, tool handles, and fuel. Native Americans used the dried pulp from the seed pods as a sweetening agent and used its wood for bows. The thorns have been used as pins.
Central and Eastern North America, NC to Mexico
Located throughout the United States (except for Washington state and Oregon) and Ontario, Canada.
Bean pods are eaten by white-tailed deer, squirrels, rabbits, hogs, opossums, and raccoons, deer browse young shoots in spring and bark of young trees in the winter. Butterflies, bees, and moths nectar at the flowers. It is the larval host plant for the Silver-spotted Skipper (Epargyreus clarus).
The pulp inside the seed pod is edible, raw or cooked, but mostly consumed by livestock and wildlife.
Fruit
Female flowers are replaced by reddish-brown, twisted, flat bean pods 12 to 18 inches long containing oval seeds appear in the summer and can remain on the tree through the winter. Seed pods twist into corkscrew shapes and can be messy to maintain once they fall off the tree. The pods turn black when ripe and contain a sweet-tasting sticky substance that gives Honeylocust its common name.
Red/Burgundy
Brown/Copper
> 3 inches
Flowers
Small greenish yellow 2 to 3 inch long, narrow, hanging, clustered flowers. Flowers have a sweet fragrance and bloom for about two weeks in summer.
Gold/Yellow
Green
Raceme
Insignificant
4-5 petals/rays
Radial
Wheel
1-3 inches
Leaves
Feathery alternate pinnately compound 5 to 8 inches long leaves with 15 to 30, oval, 1 to 1 1/2 inch leaflets. Can also be found with bininnately compound leaves with 4 to 7 pairs of minor leaflets. Leaflets are shiny dark green above and yellow-green below.
Gold/Yellow
Cream/Tan
Compound (Pinnately , Bipinnately, Palmately)
> 6 inches
Bark
Narrow, flat plates that are initially grey-brown to bronze, smooth, with many horizontal lenticels. Later breaks into long, narrow curling plated bark.
Dark Gray
Dark Brown
Stem
Branches and trunk are armed with stout, rigid, three-forked spines that are 2 to 3 inches long.
Whole Plant Traits
Tree
Native Plant
Arching
Rounded
Spreading
Cultural Conditions
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Acid (<6.0)
Alkaline (>8.0)
Neutral (6.0-8.0)
Good Drainage
Moist
more than 60 feet
Coastal
Piedmont
4a
4b
5b
5a
6a
6b
7a
7b
8b
3a
3b
Clay
High Organic Matter
Loam (Silt)
Landscape
Drought Tolerant Garden
Native Garden
Street Tree
Security
Drought
Pollution
Black Walnut
Butterflies
Bees
Moths
Small Mammals
Spines/Thorns
Messy

Gleditsia triacanthos Attributes

Gleditsia triacanthos: Uses (Ethnobotany)

Coarse grained, hard, strong wood is moderately resistant to decay. Timber used as fence posts, railroad ties, furniture, shipping pallets, tool handles, and fuel. Native Americans used the dried pulp from the seed pods as a sweetening agent and used its wood for bows. The thorns have been used as pins.

Gleditsia triacanthos: Country Or Region Of Origin

Central and Eastern North America, NC to Mexico

Gleditsia triacanthos: Distribution

Located throughout the United States (except for Washington state and Oregon) and Ontario, Canada.

Gleditsia triacanthos: Wildlife Value

Bean pods are eaten by white-tailed deer, squirrels, rabbits, hogs, opossums, and raccoons, deer browse young shoots in spring and bark of young trees in the winter. Butterflies, bees, and moths nectar at the flowers. It is the larval host plant for the Silver-spotted Skipper (Epargyreus clarus).

Gleditsia triacanthos: Edibility

The pulp inside the seed pod is edible, raw or cooked, but mostly consumed by livestock and wildlife.

Gleditsia triacanthos: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Gleditsia triacanthos: Recommended Propagation Strategy

Division
Grafting
Layering
Leaf Cutting
Root Cutting
Seed
Stem Cutting

Gleditsia triacanthos Fruit

Gleditsia triacanthos: Fruit Description

Female flowers are replaced by reddish-brown, twisted, flat bean pods 12 to 18 inches long containing oval seeds appear in the summer and can remain on the tree through the winter. Seed pods twist into corkscrew shapes and can be messy to maintain once they fall off the tree. The pods turn black when ripe and contain a sweet-tasting sticky substance that gives Honeylocust its common name.

Gleditsia triacanthos: Fruit Type

Achene
Aggregate
Berry
Capsule
Caryopsis
Drupe
Follicle
Legume
Nut
Pome
Samara
Schizocarp
Siliqua

Gleditsia triacanthos: Fruit Color

grass
Brown/Copper
grass
Red/Burgundy

Gleditsia triacanthos: Fruit Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long Bloom Season
Long-lasting
Showy

Gleditsia triacanthos: Display/Harvest Time

Fall
Spring
Summer
Winter

Gleditsia triacanthos: Fruit Length

< 1 inch
1-3 inches
> 3 inches

Gleditsia triacanthos Flowers

Gleditsia triacanthos: Flower Description

Small greenish yellow 2 to 3 inch long, narrow, hanging, clustered flowers. Flowers have a sweet fragrance and bloom for about two weeks in summer.

Gleditsia triacanthos: Flower Color

filter_vintage
Gold/Yellow
filter_vintage
Green

Gleditsia triacanthos: Flower Inflorescence

Catkin
Corymb
Cyme
Head
Insignificant
Panicle
Raceme
Solitary
Spadix
Spike
Umbel

Gleditsia triacanthos: Flower Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long Bloom Season
Long-lasting
Showy

Gleditsia triacanthos: Flower Bloom Time

Winter
Spring
Summer
Fall

Gleditsia triacanthos: Flower Petals

2-3 rays/petals
4-5 petals/rays
6 petals/rays
7 - 20 petals/rays
asymmetrical petals
Bracts
Colored Sepals
fused petals
more than 20 petals/rays
Tepals

Gleditsia triacanthos: Flower Shape

Bell
Cross
Crown
Cup
Dome
Funnel
Irregular
Lipped
Radial
Saucer
Star
Trumpet
Tubular
Urn
Wheel

Gleditsia triacanthos: Flower Size

1-3 inches
3-6 inches
< 1 inch
> 6 inches

Gleditsia triacanthos Leaves

Gleditsia triacanthos: Leaf Description

Feathery alternate pinnately compound 5 to 8 inches long leaves with 15 to 30, oval, 1 to 1 1/2 inch leaflets. Can also be found with bininnately compound leaves with 4 to 7 pairs of minor leaflets. Leaflets are shiny dark green above and yellow-green below.

Gleditsia triacanthos: Woody Plant Leaf Characteristics

Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen

Gleditsia triacanthos: Leaf Color

spa
Green

Gleditsia triacanthos: Deciduous Leaf Fall Color

spa
Cream/Tan
spa
Gold/Yellow

Gleditsia triacanthos: Leaf Type

Compound (Pinnately , Bipinnately, Palmately)
Fronds
Needles
Sheath
Simple

Gleditsia triacanthos: Leaf Arrangement

Alternate
Opposite
Other/more complex
Rosulate
Whorled

Gleditsia triacanthos: Leaf Margin

Crenate
Crenulate
Dentate
Denticulate
Doubly Crenate
Doubly Dentate
Doubly Serrate
Entire
Lobed
Serrate
Sinuate
Undulate

Gleditsia triacanthos: Hairs Present

No
Yes

Gleditsia triacanthos: Leaf Length

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Gleditsia triacanthos Bark

Gleditsia triacanthos: Bark Description

Narrow, flat plates that are initially grey-brown to bronze, smooth, with many horizontal lenticels. Later breaks into long, narrow curling plated bark.

Gleditsia triacanthos: Bark Color

grass
Dark Brown
grass
Dark Gray

Gleditsia triacanthos: Surface/Attachment

Bumpy
Exfoliating
Fissured
Furrowed
Lenticels
Papery
Patchy
Peeling
Ridges
Scaly
Shaggy
Shiny
Shredding
Smooth
Spongy

Gleditsia triacanthos Stem

Gleditsia triacanthos: Stem Description

Branches and trunk are armed with stout, rigid, three-forked spines that are 2 to 3 inches long.

Gleditsia triacanthos: Stem Is Aromatic

No
Yes

Gleditsia triacanthos Whole Plant Traits

Gleditsia triacanthos: Plant Type

Annual
Bulb
Carnivorous
Edible
Epiphyte
Fern
Ground Cover
Herb
Herbaceous Perennial
Houseplant
Mushroom
Native Plant
Ornamental Grasses and Sedges
Perennial
Poisonous
Rose
Shrub
Succulent
Tree
Turfgrass
Vegetable
Vine
Water Plant
Weed
Wildflower

Gleditsia triacanthos: Woody Plant Leaf Characteristics

Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen

Gleditsia triacanthos: Habit/Form

Arching
Ascending
Broad
Cascading
Climbing
Clumping
Columnar
Conical
Creeping
Dense
Erect
Horizontal
Irregular
Mounding
Multi-stemmed
Multi-trunked
Open
Oval
Prostrate
Pyramidal
Rounded
Spreading
Vase
Weeping

Gleditsia triacanthos: Growth Rate

Slow
Medium
Rapid

Gleditsia triacanthos: Maintenance

Low
Medium
High

Gleditsia triacanthos: Appendage

Prickles
Spines
Tendrils
Thorns

Gleditsia triacanthos Cultural Conditions

Gleditsia triacanthos: Light

Dappled Sunlight (Shade through upper canopy all day)
Deep shade (Less than 2 hours to no direct sunlight)
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)

Gleditsia triacanthos: Soil pH

Acid (<6.0)
Alkaline (>8.0)
Neutral (6.0-8.0)

Gleditsia triacanthos: Soil Drainage

Frequent Standing Water
Good Drainage
Moist
Occasional Flooding
Occasionally Dry
Occasionally Wet
Very Dry

Gleditsia triacanthos: Available Space To Plant

12 inches-3 feet
12-24 feet
24-60 feet
3 feet-6 feet
6-feet-12 feet
Less than 12 inches
more than 60 feet

Gleditsia triacanthos: NC Region

Coastal
Mountains
Piedmont

Gleditsia triacanthos: USDA Plant Hardiness Zone

thermostat
3a
thermostat
3b
thermostat
4a
thermostat
4b
thermostat
5a
thermostat
5b
thermostat
6a
thermostat
6b
thermostat
7a
thermostat
7b
thermostat
8b

Gleditsia triacanthos: Soil Texture

Clay
High Organic Matter
Loam (Silt)
Sand
Shallow Rocky

Gleditsia triacanthos Landscape

Gleditsia triacanthos: Landscape Theme

Asian Garden
Butterfly Garden
Children's Garden
Cottage Garden
Cutting Garden
Drought Tolerant Garden
Edible Garden
English Garden
Fairy Garden
Garden for the Blind
Native Garden
Nighttime Garden
Pollinator Garden
Rain Garden
Rock Garden
Shade Garden
Water Garden
Winter Garden

Gleditsia triacanthos: Design Feature

Accent
Barrier
Border
Flowering Tree
Foundation Planting
Hedge
Mass Planting
Screen/Privacy
Security
Shade Tree
Small groups
Small Tree
Specimen
Street Tree
Understory Tree

Gleditsia triacanthos: Resistance To Challenges

Black Walnut
Compaction
Deer
Diseases
Drought
Dry Soil
Erosion
Fire
Foot Traffic
Heat
Heavy Shade
Humidity
Insect Pests
Pollution
Poor Soil
Rabbits
Salt
Slugs
Squirrels
Storm damage
Urban Conditions
Voles
Wet Soil
Wind

Gleditsia triacanthos: Landscape Location

Coastal
Container
Hanging Baskets
Houseplants
Lawn
Meadow
Naturalized Area
Near Septic
Patio
Pond
Pool/Hardscape
Recreational Play Area
Riparian
Rock Wall
Slope/Bank
Small Space
Vertical Spaces
Walkways
Woodland

Gleditsia triacanthos: Attracts

Bats
Bees
Butterflies
Frogs
Hummingbirds
Moths
Pollinators
Predatory Insects
Reptiles
Small Mammals
Songbirds
Specialized Bees

Gleditsia triacanthos: Problems

Allelopathic
Contact Dermatitis
Frequent Disease Problems
Frequent Insect Problems
Invasive Species
Malodorous
Messy
Poisonous to Humans
Problem for Cats
Problem for Children
Problem for Dogs
Problem for Horses
Short-lived
Spines/Thorns
Weak Wood
Weedy