Introduction
Thuja Green Giant is one of the most popular evergreen privacy trees for homeowners who want fast growth, dense foliage, and year-round screening. Known for its tall, full shape and strong landscape presence, it is often planted along property lines, fences, driveways, and backyards to create a living privacy wall.
One of the biggest reasons gardeners choose Thuja Green Giant is its growth rate. When planted in the right conditions, this evergreen can grow quickly and fill in faster than many other privacy trees. But growth depends on sunlight, soil, watering, spacing, climate, and care during the establishment period.
This guide explains how fast Thuja Green Giant grows, what to expect by year, how tall and wide it can get, how to space it for privacy, and how to help it grow faster and fuller after planting.
Thuja Green Giant Growth Rate at a Glance
| Feature | Thuja Green Giant |
|---|---|
| Plant Type | Fast-growing evergreen privacy tree |
| Growth Rate | Fast once established |
| Best For | Privacy screens, windbreaks, property lines, evergreen hedges, large landscapes |
| Foliage | Dense green evergreen foliage |
| Best Light | Full sun to partial shade |
| Care Focus | Consistent watering during establishment, proper spacing, good drainage, light pruning |
Thuja Green Giant We Sell
Thuja Green Giant is a strong choice for homeowners who want a fast-growing evergreen privacy tree with dense foliage and a naturally full shape. It is especially useful for creating privacy screens, windbreaks, and green property-line borders.
| Tree | Best For | Why Grow It |
|---|---|---|
| Thuja Green Giant | Privacy screens, windbreaks, large hedges, property lines | Fast growth, dense evergreen coverage, and strong year-round screening |
How Fast Does Thuja Green Giant Grow?
Thuja Green Giant is considered a fast-growing evergreen tree. In good conditions, it can add several feet of growth per year once established. Growth is usually strongest when the tree receives enough sun, has well-draining soil, and is watered consistently during the first few growing seasons.
Like many privacy trees, Thuja Green Giant may spend its first season developing roots before showing its strongest top growth. Once the root system is established, growth usually becomes faster and more noticeable.
Thuja Green Giant grows fastest when it has:
- Full sun to partial shade
- Well-draining soil
- Deep watering during establishment
- Proper spacing from nearby trees and structures
- Mulch around the root zone
- Light fertilizing when needed
- Enough room to reach its natural shape
Thuja Green Giant Growth Rate by Year
Growth rate can vary based on planting size, climate, soil, watering, and sunlight. However, most Thuja Green Giant trees follow a similar pattern after planting: establish roots first, then begin putting on stronger height and width.
| Time After Planting | What to Expect | Care Focus |
|---|---|---|
| First Year | Root establishment with moderate visible growth | Water consistently and reduce transplant stress |
| Years 2–3 | Faster height gain and fuller branching | Maintain deep watering, mulch, and proper spacing |
| Years 3+ | Strong privacy screen development and denser evergreen structure | Prune lightly, fertilize if needed, and monitor drought stress |
If your Thuja Green Giant does not explode with growth immediately after planting, do not panic. A slower first year is common while the tree establishes its root system.
How Tall Does Thuja Green Giant Get?
Thuja Green Giant can grow into a tall evergreen tree when given enough space. In many landscapes, it is planted specifically because it can create a high privacy screen without needing a fence or wall.
Its mature height depends on growing conditions, climate, pruning, spacing, and how long it is allowed to grow. Many homeowners prune Thuja Green Giant to maintain a manageable hedge or screen height, while others let it grow more naturally as a large evergreen privacy tree.
How Wide Does Thuja Green Giant Get?
Thuja Green Giant develops a broad, full shape as it matures. This width is part of what makes it effective for privacy screening. However, it also means spacing matters.
If trees are planted too close together, they may compete for water, nutrients, and airflow. If they are planted too far apart, the privacy screen may take longer to fill in. The right spacing depends on how quickly you want privacy and how much room you have.
Thuja Green Giant Spacing for Privacy Screens
Spacing is one of the most important factors when planting Thuja Green Giant for privacy. A properly spaced row will grow into a fuller, healthier, more attractive evergreen screen over time.
For a tight privacy screen, homeowners often plant Thuja Green Giant closer together so the branches fill in sooner. For a more natural row, windbreak, or large landscape planting, wider spacing gives each tree more room to develop.
Spacing tips for Thuja Green Giant:
- Plant closer for a faster privacy hedge effect.
- Plant farther apart for a more natural evergreen screen.
- Keep spacing consistent in a straight privacy row.
- Leave room from fences, buildings, driveways, and walkways.
- Consider mature width before planting a long row.
- Water each tree evenly during establishment.
For a deeper spacing guide, read Thuja Green Giant Privacy Screen: Spacing & Planting Guide.
Is Thuja Green Giant Good for Fast Privacy?
Yes, Thuja Green Giant is one of the best evergreen trees for fast privacy. It grows quickly, stays green year-round, and develops a dense shape that works well for screening neighbors, roads, fences, patios, and open yards.
It is especially useful for larger spaces where you want a tall, living privacy screen that feels natural and full. Compared with slower-growing evergreens, Thuja Green Giant can create coverage sooner when planted and cared for correctly.
Thuja Green Giant is a good privacy choice if you want:
- Fast evergreen growth
- Year-round screening
- A tall privacy tree
- A natural green wall
- Dense foliage without constant pruning
- A strong backdrop for yards and landscapes
For more options, read Fast-Growing Evergreen Trees for Privacy.
How to Make Thuja Green Giant Grow Faster
The best way to help Thuja Green Giant grow faster is to give it stable growing conditions. Fast growth comes from strong roots, enough sunlight, steady moisture, and reduced stress.
To support faster growth:
- Plant in full sun to partial shade.
- Use well-draining soil.
- Water deeply during the first growing seasons.
- Add mulch around the root zone.
- Do not plant too close to competing trees.
- Fertilize in spring if the tree needs a nutrient boost.
- Prune lightly instead of cutting heavily.
- Protect young trees from drought stress.
Do not try to force growth with too much fertilizer. Overfertilizing can stress the tree and create weak, soft growth. Consistent care is better than aggressive feeding.
Best Sunlight for Thuja Green Giant Growth
Thuja Green Giant grows best in full sun to partial shade. More sun usually supports faster growth, denser branching, and a fuller privacy screen.
Partial shade can work, especially in warmer regions, but deep shade can slow growth and make the tree thinner. If your goal is a dense privacy screen, choose the sunniest practical location.
Best light conditions:
- Full sun for fastest growth and best density
- Partial shade for flexible landscape placement
- At least several hours of direct sun for strong screening
- Avoid deep shade if you want fast privacy coverage
Best Soil for Thuja Green Giant
Thuja Green Giant prefers well-draining soil. It can adapt to many soil types, but it does not perform well in constantly soggy or compacted soil. Wet roots can slow growth, cause yellowing, and weaken the tree over time.
Before planting, check whether the area drains well after rain. If water pools for long periods, improve the soil or choose a better-draining location.
Good soil should be:
- Well-draining
- Loose enough for root growth
- Moisture-retentive without staying soggy
- Not heavily compacted
- Improved with organic matter if the soil is poor
How to Plant Thuja Green Giant for Strong Growth
Proper planting helps Thuja Green Giant establish faster and grow into a healthier privacy tree. Planting too deep, planting in poor drainage, or failing to water after installation can slow growth.
Steps for planting Thuja Green Giant:
- Choose a location with full sun to partial shade.
- Make sure the soil drains well.
- Dig a hole about as deep as the root ball and slightly wider.
- Place the tree so the top of the root ball sits level with the surrounding soil.
- Backfill with soil and gently firm around the roots.
- Water deeply after planting.
- Add mulch around the root zone, keeping mulch away from the trunk.
For more planting help, read Simply Trees Guide to Planting.
How Often Should You Water Thuja Green Giant?
Newly planted Thuja Green Giant trees need consistent watering while they establish. This is especially important during the first growing season and during hot, dry, or windy weather.
Deep watering is better than frequent shallow watering. Deep watering encourages roots to grow down into the soil, which helps the tree become stronger and more drought-tolerant over time.
Watering tips:
- Water deeply after planting.
- Keep soil consistently moist during establishment.
- Water more often during heat, drought, or dry wind.
- Allow the soil to drain between waterings.
- Avoid constantly soggy soil.
- Use mulch to help retain soil moisture.
For more watering guidance, read Simply Trees Guide to Watering.
Should You Fertilize Thuja Green Giant?
Thuja Green Giant can benefit from fertilizer during active growth, especially if the soil is low in nutrients or if the tree needs help filling in. However, it usually does not need heavy feeding when planted in healthy soil.
Fertilize in spring if needed, and avoid applying heavy fertilizer late in the season. Late-season feeding can encourage soft growth that may be more vulnerable to cold or stress.
Fertilizing tips:
- Fertilize in spring as new growth begins.
- Use a balanced fertilizer or one suitable for evergreen trees.
- Water after applying fertilizer.
- Avoid overfertilizing.
- Do not fertilize a severely stressed or newly declining tree.
For broader feeding tips, read Simply Trees Guide to Fertilizing.
Do You Need to Prune Thuja Green Giant?
Thuja Green Giant naturally grows into a full evergreen form, so heavy pruning is usually not necessary. However, light pruning can help shape a hedge, control width, remove damaged growth, or encourage a cleaner privacy screen.
When pruning, avoid cutting too far into bare interior growth. Light trimming is usually better than severe cutting.
Prune Thuja Green Giant to:
- Maintain a clean privacy screen
- Control height or width
- Remove dead or damaged branches
- Shape the outside of a hedge
- Keep branches away from paths, fences, or driveways
When Should You Prune Thuja Green Giant?
The best time to prune Thuja Green Giant is usually after a flush of growth or during a mild part of the growing season. Avoid heavy pruning during severe heat, drought stress, or right before harsh winter weather.
Pruning tips:
- Use clean, sharp pruning tools.
- Prune lightly for shape.
- Remove dead or damaged growth as needed.
- Avoid cutting deeply into old bare wood.
- Shape gradually instead of removing too much at once.
Why Is My Thuja Green Giant Not Growing?
If your Thuja Green Giant is not growing, the issue is usually related to establishment, sunlight, watering, soil, or root stress. A newly planted tree may grow slowly at first while roots develop. But if growth remains weak over multiple seasons, the tree may need better conditions.
Common reasons for slow growth:
- Too little sunlight
- Underwatering during establishment
- Overwatering or poor drainage
- Compacted soil
- Planting too deep
- Root competition from nearby trees
- Drought stress
- Lack of nutrients
Start by checking the soil. If the root zone is too dry, water deeply. If the soil is soggy, improve drainage and reduce watering frequency.
Why Is My Thuja Green Giant Turning Brown?
Browning can happen when Thuja Green Giant is stressed by drought, transplant shock, poor drainage, winter burn, or root problems. Some interior browning can be normal as older foliage sheds, but widespread browning deserves closer attention.
Common causes of browning:
- Dry soil
- Waterlogged soil
- Winter or wind burn
- Transplant shock
- Root stress
- Severe heat or drought
- Planting too close together
For more health checks, read How to Tell If Your Thuja Green Giant Is Healthy.
Thuja Green Giant vs Emerald Green Arborvitae Growth Rate
Thuja Green Giant and Emerald Green Arborvitae are both popular evergreen privacy trees, but they serve slightly different landscape needs. Thuja Green Giant is usually chosen for faster growth and larger privacy screens, while Emerald Green Arborvitae is often chosen for smaller spaces, narrower hedges, and more compact privacy planting.
| Feature | Thuja Green Giant | Emerald Green Arborvitae |
|---|---|---|
| Best Use | Fast privacy screens, windbreaks, large hedges | Narrow privacy hedges, smaller yards, foundation screens |
| Growth Rate | Faster | Slower and more compact |
| Landscape Size | Larger | More compact |
| Best For | Large spaces and quick screening | Tighter spaces and controlled hedges |
For a deeper comparison, read Emerald Green Arborvitae vs Thuja Green Giant. For Emerald Green growth details, read Emerald Green Arborvitae Growth Rate.
Thuja Green Giant vs Leyland Cypress Growth Rate
Thuja Green Giant and Leyland Cypress are both used for fast evergreen privacy, but they have different care profiles and landscape personalities. Leyland Cypress is known for rapid growth, while Thuja Green Giant is often chosen for a balance of speed, density, and durability in privacy plantings.
| Feature | Thuja Green Giant | Leyland Cypress |
|---|---|---|
| Best Use | Fast evergreen privacy screens and windbreaks | Fast privacy rows and large landscape screens |
| Growth Style | Dense, full, evergreen structure | Fast, tall, and broad |
| Care Focus | Spacing, watering, drainage, light pruning | Spacing, airflow, pruning, disease prevention |
For more on Leyland Cypress growth, read Leyland Cypress Growth Rate by Year.
Thuja Green Giant vs Other Privacy Trees
Thuja Green Giant is one of the strongest choices when fast evergreen coverage is the main goal. However, the best privacy tree depends on your space, climate, desired look, and maintenance preferences.
| Tree | Best For | Landscape Look |
|---|---|---|
| Thuja Green Giant | Fast privacy screens, windbreaks, large spaces | Dense, tall, evergreen screen |
| Emerald Green Arborvitae | Narrow hedges, smaller yards, controlled screens | Compact, upright, formal |
| Italian Cypress | Narrow vertical accents and Mediterranean-style screens | Tall, slim, architectural |
| Skip Laurel | Evergreen shrub hedges and property-line screens | Glossy, dense, classic hedge |
For a broader list, read Best Privacy Trees for Your Yard.
Common Thuja Green Giant Growth Mistakes
Planting too close together
Close spacing may create faster coverage, but overcrowding can reduce airflow and increase competition over time. Plan spacing based on your privacy goal and mature size.
Not watering during establishment
New trees need consistent moisture while roots establish. Underwatering during the first season can slow growth and cause stress.
Planting in soggy soil
Thuja Green Giant needs drainage. Constantly wet soil can stress the roots and weaken the tree.
Choosing too much shade
Thuja Green Giant grows fuller and faster with more sun. Deep shade can lead to thinner growth.
Overpruning
Heavy pruning can slow growth and create bare patches. Light shaping is usually enough.
Thuja Green Giant Growth Checklist
- Plant in full sun to partial shade.
- Choose well-draining soil.
- Water deeply after planting.
- Keep soil consistently moist during establishment.
- Mulch around the root zone.
- Use proper spacing for privacy screens.
- Fertilize in spring if needed.
- Prune lightly to maintain shape.
- Avoid soggy soil and deep shade.
- Give the tree time to establish before expecting maximum growth.
Frequently Asked Questions
How fast does Thuja Green Giant grow?
Thuja Green Giant is a fast-growing evergreen tree. Growth is usually strongest once the tree is established and planted in full sun to partial shade with well-draining soil and consistent moisture.
Is Thuja Green Giant faster growing than Emerald Green Arborvitae?
Yes, Thuja Green Giant generally grows faster and larger than Emerald Green Arborvitae. Emerald Green Arborvitae is better for narrower, more compact spaces.
How long does Thuja Green Giant take to create privacy?
The timeline depends on starting size, spacing, sunlight, watering, and soil. With good care, Thuja Green Giant can begin filling in noticeably within the first few years after planting.
How far apart should I plant Thuja Green Giant?
Spacing depends on whether you want a tight hedge or a looser privacy screen. Plant closer for faster coverage and farther apart for more natural growth and airflow.
Does Thuja Green Giant need full sun?
Thuja Green Giant grows best in full sun to partial shade. Full sun usually produces faster growth and denser foliage.
Why is my Thuja Green Giant not growing?
Slow growth can be caused by transplant shock, not enough sun, inconsistent watering, poor drainage, compacted soil, or root competition.
Can Thuja Green Giant be trimmed?
Yes, Thuja Green Giant can be lightly trimmed to shape a hedge or control size. Avoid severe pruning or cutting deeply into bare interior growth.
Is Thuja Green Giant good for small yards?
Thuja Green Giant is best for medium to large spaces because it can grow tall and wide. For smaller yards, Emerald Green Arborvitae or other narrower evergreens may be a better fit.
Does Thuja Green Giant stay green year-round?
Yes, Thuja Green Giant is evergreen and provides year-round green foliage when grown in suitable conditions.
What is the best way to make Thuja Green Giant grow faster?
Plant it in full sun to partial shade, water deeply during establishment, use well-draining soil, mulch the root zone, and avoid overcrowding or heavy pruning.
Final Thoughts
Thuja Green Giant is one of the best evergreen trees for fast privacy, large screens, windbreaks, and year-round landscape structure. Its fast growth rate makes it especially useful for homeowners who want a living privacy wall without waiting decades for coverage.
For best results, focus on proper planting, consistent watering during establishment, good spacing, full sun to partial shade, and light pruning. With the right care, Thuja Green Giant can grow into a tall, dense, dependable evergreen screen for your yard.
To start your privacy planting, view our Thuja Green Giant.
