Green Giant privacy hedge spacing
For a fast, dense wall, 5 to 6 feet apart is common. However, because of the Green Giant mature width (up to 15-20 feet over decades), planting them 8 feet apart is healthier for long-term canopy structure.
QUICK ANSWER
What to know first
Thuja Green Giant spacing should generally be 5 to 8 feet apart depending on the desired speed of privacy. They grow massive; always account for the Green Giant mature width when deciding distance from a fence.
Green Giants need more room than narrow arborvitae varieties.
Closer spacing can speed coverage but increases crowding risk.
Long rows may benefit from staggered or layered layouts.
GUIDE
What affects the project
Green Giant distance from fence
A critical mistake is planting too close to a boundary. The Green Giant distance from a fence should be at least 6 to 8 feet from the trunk to the fence line to avoid crushing the fence as it matures.
Green Giant staggered row
If you have a deep backyard, a Green Giant staggered row (planted on diagonals) offers an instant privacy effect without crowding the root balls on a single line.
VISUAL GUIDE
What this looks like on site
Measure before layout
Flags and tape help show whether the spacing works for both the current size and the mature screen.
Leave room for width
Green Giants need enough planting depth so the row does not overwhelm fences, drives, or neighboring areas.
Avoid tight crowding
Crowding can create a quick wall, but it is not always the best long-term screen.
DECISION SUPPORT
How to use this guide before planting
Plan for mature width
Spacing should not only solve the first-year gap. The row also needs enough room for mature width, airflow, fence clearance, and future maintenance access.
Match species to the site
Sun, drainage, deer pressure, available depth, and desired height can change whether a narrow arborvitae, a large evergreen, or a mixed screen is the stronger fit.
Measure the whole line
Photos help, but row length, corners, gates, utilities, slopes, and overhead lines determine the practical layout and the number of trees needed.
ESTIMATE PREP
What to send for Green Giant spacing help
- Row length and photos of the full area to be screened.
- Available planting depth from fence, drive, road, or property line.
- Whether the priority is fast coverage, long-term health, or both.
- Notes about deer, drainage, sun exposure, slopes, and watering access.
NEXT STEP
Need a Green Giant row laid out?
Send the row length, photos, available planting depth, and privacy goal so we can help plan a practical Green Giant screen.
NEXT PAGES
Related planting pages
Evergreen & Privacy Trees
Review privacy-screen options, evergreen layout choices, and site constraints before planning a row.
Arborvitae Spacing GuideUse this when tree count, row length, mature width, or planting distance is the next decision.
Green Giant vs. Emerald GreenContinue with the page that best matches the planting decision, site constraint, or service type you are comparing.
RELATED SERVICES
Planting services to compare
Tree Planting & Installation
Standard shade, ornamental, and property tree installation.
Large Specimen TreesBalled-and-burlapped trees, delivery, access, and equipment logistics.
Evergreen & Privacy TreesArborvitae rows, mixed evergreen screens, and property line privacy.
Shrub & Landscape PlantingFoundation shrubs, garden beds, ornamentals, and curb appeal planting.
Estate & Farm PlantingLarge-property planting for farms, estates, entrances, and acreage.
Commercial & HOA PlantingBusinesses, developments, community entrances, common areas, and buffers.
Nursery Trees & ShrubsPlant material sourcing and selection for installed planting projects.
FAQ
Common Questions
Should Green Giant arborvitae be planted close for fast privacy?
Closer spacing can fill in faster, but the layout still needs to account for mature width, airflow, watering, and long-term maintenance.
Is Green Giant right for a narrow side yard?
Often no. Green Giant needs room. Narrow side yards may be a better fit for Emerald Green or another screening approach.
NEXT STEP
Need a Green Giant row laid out?
Send the row length, photos, available planting depth, and privacy goal so we can help plan a practical Green Giant screen.