Why is pH important to Cannabis
So first things first, why would pH be important to a Marijuana plant?
In short, each living thing is actually influenced by the pH around them. The impact on plants results in their capacity to ingest the element it needs to grow. For example, Nitrogen can only be absorbed when the pH is over 5.4; If your pH is below that, you can put as much Nitrogen as you want in the water, it just enrich your soil (and possibly ruin it).
We’ll see this in the next section, but keep in mind that when you water your plant you want the water to be between 6 and 7, if possible right around 6.5. I say 6.5, but many growers stay lower or higher, but honestly if you’re starting out, just aim for the middle and it’ll be fine.
The most important thing is to stay between 6 and 7.