The Cannabis Grow Bible
by Greg Green
Basically pots come in all shapes and sizes. Marijuana plants are best kept in pots that are somewhat large (1.5 – 3 gallon pots) because cannabis does grow long roots.
Also you are better off buying a pot that has some form of perforations (holes) at the bottom. The perforated pot sits on a small dish (you should be able to buy these at the same time you buy your pots). When you water your plant some of the water may drain down through the soil and come out through the perforations and into the dish. The dish should be emptied if this happens to avoid water spills.
More advanced growers use pots that do not contain perforations at the bottom. This is because advanced growers never water or feed their plants too much. If you over-water your plant, these perforated pots will drain some of the water through to the dish. What happens is that the water may also leech down some of the nutrients that you have added to your soil. Over-watering can cost you time, wasted nutrients and even kill your plant.
Before you use a pot make sure that you clean it thoroughly before use to get rid of any unwanted chemicals or dust that may have gathered in the shop or factory.
Pots are very cheap to buy. It is always best that you only use one pot per plant. If there is a problem with the soil, watering or nutrients then only one plant will feel the effects.