How does hot water work?
- The cell structure on the leaves of the plants is destroyed by the boiling liquid. Photosynthesis can no longer take place.
- The hot water also penetrates the soil and damages the roots here. The plant can no longer absorb water and dries up.
Prepare hot water to save energy
Bring the liquid to the required temperature in a standard kettle. If you want to save energy, you can simply use potato water or collect the hot pasta water and pour it over the weeds.
also read
- Tips and tricks on how to remove weeds effectively
- Eight great tips on how to remove weeds effectively and extensively
- Effective means of permanently removing weeds in pavement joints
How is the boiling water used?
The liquid no longer has to boil bubbly, but it should be warm. Pour this over the green in a thin stream. All parts of the plant must be wetted evenly and for about ten seconds.
So that plants growing nearby are not accidentally damaged, you should make sure that they do not come into contact with the hot liquid.
What are the advantages and disadvantages of this method?
Boiling water works very well against stubborn weeds. It works:
- uncomplicated,
- fast and effective,
- without the use of chemicals and therefore ecologically harmless.
But there are also disadvantages:
- The water and energy consumption would be too high on large areas.
- The soil bacteria in the immediate vicinity can die.
- Surfaces can be affected by the hot liquid.
Tips
Boiling water is very good at killing weeds that have settled in the joints of the paving stones. However, the material can be damaged by the heat. If you are unsure how robust the surface is, you should first test the method on a leftover stone.
