Introduction
If you’ve recently planted a Thuja Green Giant—or are planning to—you might be wondering: how do I know if my tree is actually healthy?
This fast-growing evergreen is known for being hardy and low-maintenance, but like any plant, it can show signs of stress if something isn’t right.
The good news? You don’t need to be an expert to tell.
In this guide, we’ll walk through 3 simple signs to check so you can quickly assess whether your Thuja Green Giant is thriving—and what to do if it’s not.
1. Check the Color of the Foliage
The first and most obvious indicator of health is color.
A healthy Thuja Green Giant should have:
- Rich, deep green foliage
- Even color throughout the plant
- No large patches of discoloration
What’s normal
- Slight yellowing or browning on the inner foliage
- Minor discoloration after transplanting or shipping
👉 These are usually part of natural shedding or temporary stress.
What to watch out for
- Large sections turning brown
- Tips browning across the entire tree
- Pale or dull green color
These can indicate:
- Overwatering or poor drainage
- Underwatering
- Root stress
What to Check When Your Thuja Green Giant Arrives
If you just received your tree, don’t panic if it doesn’t look perfect right away.
Shipping can cause temporary stress, which may show up as:
- Slight drooping
- Minor browning at the tips
- A less vibrant green color
👉 This is normal.
With proper planting and watering, most Thuja Green Giants recover quickly within a few weeks.
If you’re unsure about proper planting or care, refer to our full guide:
👉 Thuja Green Giant Care Guide
2. Inspect for Pests or Physical Damage
Next, take a closer look at the branches and foliage.
While Thuja Green Giants are generally resistant, they can occasionally be affected by pests.
What to check for
- Small webbing (possible spider mites)
- Bag-like clusters (bagworms)
- Chewed or damaged foliage
What’s normal
- A few minor imperfections
- Slight bending from shipping
When to take action
If you notice:
- Spreading damage
- Visible pests
- Rapid decline in foliage
👉 Treat early with insecticidal soap or neem oil to prevent escalation.
3. Look at Growth and Density
Healthy Thuja Green Giants should show consistent, full growth over time.
Signs of a healthy tree
- Dense, bushy foliage
- Upright, strong structure
- Noticeable new growth during the growing season
Signs of stress
- Sparse or thinning areas
- Uneven growth
- Stunted height over time
These can be caused by:
- Improper spacing
- Lack of sunlight
- Poor soil conditions
When to Take Action
If your tree shows multiple warning signs, it’s time to step in.
Start with the basics:
- Check soil moisture (not too wet, not too dry)
- Ensure proper sunlight (at least 6 hours daily)
- Confirm spacing is adequate
For a complete breakdown of how to fix common issues, see our full care guide:
👉 Thuja Green Giant Care Guide
When It Might Be Time to Replace Your Tree
In rare cases, a tree may not recover—especially if:
- Browning continues to spread
- Growth completely stops
- The structure becomes brittle
If that happens, replacing the tree early can save time and help you maintain a consistent privacy screen. All our trees come with a 1-year guarantee.
👉 Browse healthy, ready-to-plant options here:
Shop Thuja Green Giant Trees
Final Thoughts
The Thuja Green Giant is one of the most resilient and beginner-friendly privacy trees available.
In most cases, small imperfections are nothing to worry about—especially early on.
By checking:
- Color
- Pests or damage
- Growth and density
…you can quickly determine whether your tree is healthy and take action if needed.
