It's a recurring problem that scares garden owners: the thuja turns completely brown inside! Why is this and what should be done now? In most cases, the excitement is unfounded because it is a natural process when thuja turns brown inside.
Why does the thuja hedge turn brown inside?
A thuja hedge turns brown on the inside because it is a natural process in which needles turn yellow, then brown and fall off, favored by low light in autumn. In most cases, no special treatment is required.
Why does the thuja turn brown inside?
The fact that the thuja hedge turns brown on the inside, especially in autumn, is a completely natural process. The needles first turn yellow, then brown and then fall off dry.
This process is favored by little light, which shines increasingly rarely, especially in the cold season. The process is complete when the temperatures drop significantly.
Before you panic, you should clarify the circumstances under which the hedge grows. If you are unsure, ask a gardening professional whether and what you need to do.
Clarify circumstances
Occasionally, incorrect care, diseases and pests can also be the cause of tanning. Therefore, clarify whether the Thuja really lacks anything. Look for the following points:
- Location sufficiently moist
- no waterlogging
- not overfertilized
- no pest infestation visible
- Fungal diseases can be ruled out
What to do to treat the brown spots?
Basically, you don't have to do anything if the thuja hedge turns brown on the inside. You can just wait.
If the brown spots are very bothersome, cut them off with sharp secateurs (€14.00 on Amazon) and shake the branches as you do so.
Remove all brown and dried parts so that you do not cut too close to the old wood. The tree of life no longer sprouts in these places!
Thuja gets brown tips
If the tips of the Thuja hedge turn brown on the outside, strong sunlight (sunburn) or a pest infestation could be responsible.
Never cut a tree of life directly in the hot sun.
You can recognize a pest infestation by feeding passages in the shoots and black piles of excrement that stick to the needles.
Tip
You can hide unsightly brown spots or holes that appeared during cutting. Guide green shoots with a wire so that they lie over these places.
