It's a recurring problem that frightens garden owners: the thuja turns all brown on the inside! Why is that and what is to be done now? In most cases, the excitement is unfounded, because it is a natural process when thuja turns brown on the inside.

In autumn, the thuja often turns brown

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 less and less during the cold season. The process is complete when the temperatures drop sharply.

Before you panic, you should clarify the circumstances under which the hedge is growing. If you are unsure, ask a garden specialist whether and what you need to do.

clarify circumstances

Occasionally, of course, incorrect care, diseases and pests are also possible causes of tanning. Therefore, clarify whether the Thuja really lacks anything. In doing so, look at the following points:

  • Location sufficiently moist
  • no waterlogging
  • not over-fertilized
  • no pest infestation recognizable
  • 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 and see.

Very disturbing the brown spots, cut them off with sharp pruning shears, shaking the branches at the same time.

Remove all brown and dried parts so that you do not cut too close to the old wood. In these places the tree of life no longer sprout!

Thuja gets brown tips

If the thuja hedge turns brown on the outside at the tips, strong sunlight (sunburn) or a pest infestation can be responsible.

Never cut a tree of life directly in the hot sun.

You can recognize a pest infestation by feeding tunnels in the shoots and small piles of black droppings that stick to the needles.

tips

You can hide unsightly brown spots or holes that appeared during cutting. Using a wire, guide green shoots so that they overlie these spots.

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