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Ornamental Tree · Easy

How to Grow Thornless Honeylocust Skyline

Gleditsia triacanthos inermis 'Skyline'

Your complete guide to growing Thornless Honeylocust Skyline.

☀SunFull sun to partial shade (4-6+ hours)
💧WaterLow — drought tolerant
🗺Zones3–8
📏Height60-80 feet
Thornless Honeylocust Skyline📷 Wikipedia: Honey locust

When to Plant Thornless Honeylocust Skyline

Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.

ZoneStart IndoorsDirect SowHarvest
Zone 3 — — —
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Companion Plants for Thornless Honeylocust Skyline

✓ Good companions

Astilbe

Enjoys partial shade created by tree canopy, adds texture and spring blooms

Coral Bells

Shallow root system doesn't compete with tree, tolerates filtered light conditions

Daylilies

Tolerates light shade and competes well with tree roots, provides summer color

Ferns

Natural woodland companion that thrives in the dappled shade of honeylocust

Hostas

Thrives in the filtered shade under honeylocust canopy, creates attractive understory planting

Pachysandra

Excellent groundcover that suppresses weeds and tolerates root competition

Serviceberry

Compatible native understory tree that provides wildlife food and spring flowers

Spring Bulbs

Bloom before tree leafs out, then go dormant as shade increases

✗ Keep away from

Black Walnut

Produces juglone toxin that can stunt or kill honeylocust and most other plants

Large Pine Trees

Creates too much shade and acidifies soil, conflicting with honeylocust's sun requirements

Shallow-rooted Vegetables

Cannot compete with honeylocust's extensive shallow root system for water and nutrients

Notes from the garden

A greener inbox, occasionally.

Seasonal planting ideas, useful tips and a little inspiration. No weeds.