Topic: Can you spray your silica over Cannabis Plants

Yes, you can, but most likely, it will not have the desired effect you’re looking for.

Here is the explanation.

Mono-Silicic Acid vs. Potassium silicate

First, bacteria must convert it to monosilicic acid. Therefore, applying potassium silicate does not have the same effects as applying monosilicic acid. Plants will not be able to experience the benefits of silicon until weeks or months after you apply potassium