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THE GARDEN SAGEA library of living things
Trees & woodland lore · Western North Carolina field companion

Skyline thornless honeylocust

Gleditsia triacanthos var. inermis

Gleditsia triacanthos. Taxon reference; photograph alone does not establish a named cultivar.
Gleditsia triacanthos. Taxon reference; photograph alone does not establish a named cultivar.☀ Full sunWendy Cutler ↗ · CC BY 2.0
Photo contextResized and converted to WebP; no diagnostic content altered.

Light shade and urban tolerance; select thornless, mostly podless named cultivars.

Sun Exposure
Full sun
MATURE HEIGHT (FT)
35–50
MATURE WIDTH (FT)
30–40
BLOOM SEASON
Late spring
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Get to know this plant.

Identification clue 1

Small leaflets on compound leaves

Identification clue 2

Some leaves twice-compound

Identification clue 3

Wild types can have branched thorns

Read the leaves

Leaves can be once- or twice-compound on one tree. The small oval leaflets have very fine marginal teeth; use a hand lens because the edges may look smooth at first.

More growing details

Read the bark

Mature bark develops elongated scaly ridges.

Fruit & seed

Wild and female trees can bear long twisted pods; Skyline is selected for male, usually podless growth.

Winter character

Fine twigs and small buds need provenance for a cultivar claim; lack of thorns alone is insufficient.

Origin & place

Honeylocust is North American, but its native limits in NC are uncertain. Skyline is a cultivated selection, not evidence of a wild local population.

Compare with Kentucky coffeetree

Coffeetree has much larger twice-compound leaves and coarser twigs.

WNC Notes

Light shade and urban tolerance; select thornless, mostly podless named cultivars.

Sun Exposure

Full sun

MATURE HEIGHT (FT)

35–50

MATURE WIDTH (FT)

30–40

BLOOM SEASON

Late spring

BLOOM COLOR

Greenish

FALL / WINTER COLOR

Yellow

Wet-Soil Tolerance

High

Drought Tolerance

Low

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