White Mold in Soil - Is it Harmful?
I just noticed a whole bunch of white mold growing in the soil of all the plants I have started indoors. I thought it was baking soda and water, so I sprayed them all down. But isn't it baking powder? Tell me I didn't just poison all my plants.
The mold means your pots are too wet and you don't have enough air circulation.
Baking soda and baking powder have the same active ingredient, sodium bicarb. Baking powder also has starch and an acid activating agent. The pH swing and the extra sodium ions from sodium bicarb cannot be good for seedlings (may stunt them). The baking powder should cancel itself out, pH wise, when it gets wet, becoming neutral. At best, application of either might not harm them. The mold is harmless, the conditions allowing the mold to form might be dangerous.
Baking soda and baking powder have the same active ingredient, sodium bicarb. Baking powder also has starch and an acid activating agent. The pH swing and the extra sodium ions from sodium bicarb cannot be good for seedlings (may stunt them). The baking powder should cancel itself out, pH wise, when it gets wet, becoming neutral. At best, application of either might not harm them. The mold is harmless, the conditions allowing the mold to form might be dangerous.