You can go wrong when fertilizing thuja. The tree of life reacts just as badly to too much fertilizer as it does to too little nutrient supply. Fertilizing with Epsom s alt, which is often recommended, is only necessary if the hedge suffers from a specific deficiency.
When should you fertilize thuja with Epsom s alt?
Fertilize thuja with Epsom s alt only if there is a proven magnesium deficiency, which shows up in yellow tips. Choose an appropriate product and follow dosage instructions carefully to prevent overfertilization. Avoid fertilizing when the sun is shining and apply either after rain or on previously watered soil.
If there is a magnesium deficiency, fertilize thuja with Epsom s alt
If the thuja has yellow tips, you should think about a magnesium deficiency in the soil. But first check the hedge for pests and fungal diseases. Also check that the thuja is kept moist enough but not too wet.
If all other causes have been ruled out, you should take a soil sample and have it examined in the laboratory. If a magnesium deficiency turns out, fertilizing with Epsom s alt will help.
Regular fertilization with Epsom s alt, as is often recommended, does not make sense. You should only use this mineral fertilizer if there is actually a deficiency.
Adhere to the dosage exactly
First you have to select a suitable product (€9.00 on Amazon). Epsom s alt can be administered in liquid or solid form.
The dosage instructions must be followed carefully to prevent over-fertilization and resulting acidification of the soil.
For light soils, add up to 4 grams of Epsom s alt per 100 grams of soil. For heavier soils, a dosage of up to 6 grams is sufficient. You can only add up to 9 grams for very heavy clay soils.
When to fertilize with Epsom s alt?
Fertilization with Epsom s alt is carried out immediately after the infestation occurs and is confirmed by the laboratory.
- Do not fertilize when the sun is shining
- Give Epsom s alts after a rain shower
- or water the soil beforehand
- sprinkle very dry thuja with water
You have to pay attention to this
When spraying, wet the top and bottom of the leaves, but not too close to the trunk. The needles should under no circumstances become dripping wet.
Epsom s alt is sprinkled in solid form around the tree of life. If possible, the s alt should not be added directly to the trunk.
Tip
Fungal diseases do not occur that often in the tree of life. However, there has been an increase in recent years. Often entire arborvitae hedges can no longer be saved.
