How Close Can You Plant Green Giant Arborvitae

You can plant green giant arborvitae as close as 3 to 4 feet apart if you want a dense, fast-growing privacy screen.
 
But the distance you choose for how close you can plant green giant arborvitae really depends on your landscaping goal.
 
If you’re aiming for a solid hedge that blocks views quickly, spacing them tighter works best.
 
On the other hand, planting them farther apart lets each tree develop its natural conical shape.
 
In this post, we’ll explore how close you can plant green giant arborvitae for different uses, what factors affect spacing, and how to avoid common mistakes.
 
Let’s dig into the details so you can get the most out of your green giants.
 

How Close You Can Plant Green Giant Arborvitae for a Privacy Screen

The most common reason people ask how close you can plant green giant arborvitae is to create a living fence.
 
For a thick, continuous privacy screen, the ideal spacing is 3 to 4 feet apart.
 
At this distance, the branches will overlap and fill in the gaps within two to three years.
 
Here’s why that spacing works so well for green giant arborvitae.
 

1. They Grow Fast and Wide

Green giant arborvitae are one of the fastest-growing evergreens, adding 3 to 5 feet per year under good conditions.
 
Their mature width is typically 12 to 15 feet, so planting them 3 to 4 feet apart means they’ll interlock quickly.
 
This tight spacing creates an almost instant privacy wall without leaving gaps.
 
When you plant green giant arborvitae this close, you’re essentially forcing them to grow into a hedge.
 

2. Less Maintenance Over Time

A tighter spacing of 3 to 4 feet also reduces the need for pruning.
 
Because the plants grow together, they naturally form a uniform barrier.
 
You won’t have to worry about bare spots or uneven growth.
 
So if you want a low-maintenance screen, how close you can plant green giant arborvitae at this range is perfect.
 

3. Works Best for Formal Hedges

If you plan to keep the hedge trimmed and formal, spacing on the closer end works great.
 
You can plant green giant arborvitae at 3 feet apart and shear them annually to keep the sides flat.
 
This creates a neat, manicured look that many homeowners love.
 
Just remember that shearing can reduce the natural fullness of the foliage, so only do it if you want that formal style.
 

Factors That Affect How Close You Can Plant Green Giant Arborvitae

Not every situation calls for the same spacing when you plant green giant arborvitae.
 
Several factors influence how close you can plant green giant arborvitae without causing problems.
 
Consider these key points before you decide on a distance.
 

1. Mature Size of the Trees

Green giant arborvitae can reach 50 to 60 feet tall and 12 to 15 feet wide at maturity.
 
If you plant them too close, say at 2 feet apart, they may compete for nutrients and sunlight.
 
This can lead to stunted growth or dieback on the inner branches.
 
That’s why 3 to 4 feet is the sweet spot for most privacy screens.
 
For individual specimens, you’ll need much more space — at least 10 to 12 feet apart.
 

2. Soil Quality and Drainage

Green giant arborvitae prefer moist, well-drained soil.
 
In poor or compacted soil, roots won’t spread as freely.
 
If your soil is heavy clay, it’s wise to space them a bit wider — around 5 to 6 feet apart.
 
This gives each tree enough root room to establish properly.
 
So how close you can plant green giant arborvitae also depends on what’s underground.
 

3. Sunlight Exposure

These evergreens need full sun to partial shade for best growth.
 
In shadier spots, they grow slower and may not fill in as densely.
 
If you’re planting in a partly shaded location, space them a little closer — about 3 feet apart — to encourage quicker coverage.
 
Full sun allows the trees to grow wider, so 4 feet apart works fine.
 

4. Your Long-Term Vision

Ask yourself what you want the hedge to look like in 10 or 20 years.
 
If you want a dense wall that stays thick from top to bottom, closer spacing is key.
 
If you prefer each tree to keep its individual form, push the spacing to 6 or 8 feet apart.
 
Remember, you can always plant green giant arborvitae with a bit more room and let them spread naturally.
 

Spacing Green Giant Arborvitae for Windbreaks and Specimen Planting

Privacy screens aren’t the only reason to plant green giant arborvitae.
 
You might want a windbreak to protect your yard or a single standout tree.
 
Here’s how close you can plant green giant arborvitae for those purposes.
 

1. Windbreak Rows

For an effective windbreak, plant them in a staggered double row.
 
Space each row 8 to 10 feet apart, with trees in each row 6 to 8 feet apart.
 
This arrangement lets the trees form a porous barrier that slows wind without causing turbulence.
 
How close you can plant green giant arborvitae in windbreaks is a bit wider than for hedges.
 

2. Specimen Trees

If you want a single green giant arborvitae as a focal point, give it plenty of room.
 
Plant it at least 8 to 10 feet away from other trees and structures.
 
This allows the tree to develop its full pyramid shape and show off its rich green foliage.
 
Don’t crowd a specimen — the whole point is to let it shine.
 

3. Mixed Landscapes

In a mixed border with shrubs and perennials, space green giant arborvitae 4 to 6 feet apart from other large plants.
 
This prevents overcrowding and ensures good air circulation.
 
Good airflow reduces the risk of fungal diseases common in dense plantings.
 

So, How Close Can You Plant Green Giant Arborvitae?

You can plant green giant arborvitae as close as 3 to 4 feet apart for a fast, dense privacy screen.
 
For windbreaks, stretch spacing to 6 to 8 feet, and for individual specimens, give them 10 feet or more.
 
How close you can plant green giant arborvitae ultimately depends on your goals, soil, sunlight, and how quickly you want results.
 
By matching the spacing to your landscape plan, you’ll enjoy healthy, vigorous trees that thrive for decades.
 
Now you’re ready to plant green giant arborvitae with confidence and watch your hedge grow beautifully.