Cannabis growers are constantly looking for safe and cost-effective methods to keep their plants healthy. Baking soda is a tried and tested household remedy that can be useful not only in the kitchen, but also in the grow room. But how exactly does it work and what do you need to consider?
How does baking soda affect cannabis plants?
Baking soda consists of sodium hydrogen carbonate, which has an alkaline effect and is able to inhibit fungi and pests. Its main benefits are:
- Mold prevention (especially mildew)
- Regulation of the pH value in the soil
- Natural pest defense (e.g. against spider mites)
Critical consideration – when is baking powder not suitable?
Although baking soda can be helpful, there are limitations:
- Overdosing can make the soil too alkaline and cause nutrient blockages.
- No substitute for fungicides in case of heavy infestation.
- Not effective against all pests – e.g. little effect on thrips.
Application methods – How to use baking powder correctly
1. mold control with baking soda spray
Recipe:
- 1 teaspoon baking powder
- 1 liter of water
- A few drops of rapeseed oil (for better adhesion)
Application:
Spray affected leaves every 3-4 days until the mold disappears. Be careful not to use too much, otherwise leaf burns may occur.
2. pH value regulation in the soil
Baking powder can have a slightly alkaline effect and help with excessively acidic soils. But be careful:
- First test the pH value of the soil.
- Only use in very small quantities (½ tsp per liter of water).
3. prevention against pests
A thin layer of baking soda on the soil can deter small insects. However, this method is less effective than neem oil or other biological pesticides.
Alternatives to baking soda – when are other products better?
- Apple cider vinegar for pH reduction
- Neem oil against pests
- Potassium soap for gentle pest control
Conclusion – baking powder as a supplementary aid
Baking soda is a cheap and natural option for minor problems, but it is not a miracle cure. More targeted solutions should be chosen for severe mold or pest infestations.