What is your biggest question about growing cannabis?

[alltatup]

Over watering is watering them too often.

[Retodd]

Another thing it will depend on is what you’re growing in. For my indoor I like using the fiber bags. It’s almost impossible to over water. Best way to check is to stick your finger in the soil a couple inches down. If it comes out dry it’s time to water. If you over water it’ll just come out the sides. Hope this helps

[Farmall]

Watering too frequently is really over watering and standing water is a no-no as well. I have friends with houseplants that kill them by watering every other day

[wolfalias]

People say the biggest mistake made by new growers, is over watering. I've also read where you should water your plants to, I think 20%, runoff. My question is this-what's the difference between over watering, and watering to runoff? Seems like a contradiction to me.

[alltatup]

https://www.growweedeasy.com/lux-meter

Hi mingzhu, that should help you. I got the lux meter she recommends, and I use it on each grow to see how much light is penetrating to lower areas.