Lawn Guardian

Green Giant Arborvitae Care Guide

Thuja standishii x plicata

evergreenZones 5–8deer resistant

Extremely fast-growing hybrid arborvitae that can add 3-5 feet per year. Dense pyramidal form remains green in winter. The #1 privacy screen plant in America.

At a glance

Season-by-season care

Spring

Inspect for winter damage Early spring

Check for snow/ice damage. Green Giant is more resistant to snow damage than other arborvitae but check anyway.

Summer

Shear for formal hedge (optional) Early summer

If using as a formal hedge, shear once in early summer. Otherwise let grow naturally.

Water during establishment First 2 years

Water weekly for first 2 years. Established trees are moderately drought tolerant.

Fall

Deep water before winter Late fall

Thorough fall watering prevents winter desiccation.

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Related plants

Sources: Purdue University Turfgrass Science: Use Growing Degree Days to Better Time Your Applications · University of Missouri Extension: Cool-Season Grasses: Lawn Maintenance Calendar · University of Minnesota Extension: Pre-emergent Herbicides for Crabgrass Control in Lawns