Content
- Does Epsom Salt help when Thuja turns brown?
- When does it make sense to fertilize Thuja with Epsom salt?
- Yellow needles indicate magnesium deficiency
- When is Epsom salt given?
- How is Thuja fertilized with Epsom salt?
- For brown needles, do not use Epsom salt
- Tips
Epsom salt is useful only in magnesium deficiency
Does Epsom Salt help when Thuja turns brown?
When the thuja turns brown, this often does not always indicate a defect. Therefore, many gardeners believe that they do good to the tree of life by additionally fertilizing the hedge with Epsom salt. Overfertilization with mineral fertilizer can really harm the Thuja. For brown needles, Epsom salt is not helpful.
When does it make sense to fertilize Thuja with Epsom salt?
Epsom salt compensates for magnesium deficiency. Only when this is present, it may be useful to supply the tree of life with Epsom salt.
Only when you are absolutely certain that magnesium is deficient should you use mineral fertilizer. It is therefore advisable to take a soil sample and submit it to a laboratory for examination.
Yellow needles indicate magnesium deficiency
If the needles of the Thuja turn yellow, it is quite likely that the hedge suffers from magnesium deficiency. This can happen even if you have fertilized regularly. Magnesium is water-soluble and is washed away with rainwater.
When is Epsom salt given?
If it is absolutely certain that there is a magnesium deficiency, fertilization with Epsom salt is required. It is most favorable for the thuja budding in April. Sometimes it is necessary to re-fertilize in the summer before the second shoot.
On the day of Epsom salt fertilization, the sky should be cloudy. The soil is watered beforehand or you fertilize after a rainfall. If heavy rains are expected, you should postpone the fertilizer. The Epsom salt is then flushed away and may accumulate on other plants that are being overfertilized.
How is Thuja fertilized with Epsom salt?
Epsom salt can be dissolved in water and splashed or placed directly on the ground.
The solution is sprayed on the undersides of the leaves but not too close to the trunk.
When administered in solid form, the Epsom salt is scattered around the tree of life. It must not get too close to the trunk and certainly not directly to the roots.
When dosing, follow the manufacturer's instructions. For heavy soils the concentration is higher than for light soils.
For brown needles, do not use Epsom salt
Brown needles and tips are not a sign of magnesium deficiency, but indicate a pest or fungal attack. More often, it is burn damage caused by sun, frost damage or dry soil.
If the thuja turns brown, it can also be due to an oversupply of nutrients, an over-fertilization. As a result, the roots are attacked, they burn and can no longer absorb water.
Therefore, it is important that you do not overfertilize a thuja, but rather too little, than to administer too much fertilizer.
Tips
If you fertilize your thuja hedge with organic compounds such as mature compost, seasoned manure or horn shavings, do not take any risks. An oversupply is excluded because the nutrients are released only slowly.