I'm kind of a noob to growing, but I'm close to my first harvest and haven't had any problems using this method:
First, let the soil get pretty dry by not watering for at least 3-5 days. It shouldn't hurt your plant, weed is VERY resilient.
Then, when you're sure it's really dry, take a 1 or 2 cup measuring cup and SLOWLY water it. Like an ounce or 2 at a time. Make sure it soaks in before you add the next little splash of water. Repeat until water starts coming out the holes in the bottom of your pot.
Keep track of the amount of water it took until it spilled out through the bottom of the pot.
Now wait about 3 days (that's how often I water) and give your plant about 2/3 to 3/4 the water it took to reach the overflow level.
Every couple weeks I would up the amount I watered as the plants grew bigger. And if I over did it occassionally, and water overflowed out the bottom of the pot, no big deal. That just gave me a new watering quantity to go by for the next 2 weeks.
I think most people that have water issues with their plants are usually OVER WATERING. But again, I am fairly new to this hobby, and I could definitely be wrong about that, lol.
Good Luck.
