quality potting soil i have tested has always been 6.5-7 and some have it listed near the 'ingrediants' section on the bag. humus is just rotted forest products and too much is not good. cannabis likes a sandy-loamy soil with good drainage...iow, it hates sitting in wet ground constantly and must have good drainage to thrive. i use the best potting soil available and blend with cactus potting soil plus a little perlite...

it's just as important to check your water ph too...if not moreso.
del... Reviewed by del... on . Soil (pH) Help? Hi ppl, this is my first post and as-well my first time growing Marijuana. So i've been looking up the most Information about indoor growing as i can' and i feel "Kinda" confident about starting my grow but then again im not sure (well i atleast hope all goes well) but thats why im here. The space im going to make my grow room is my closet and its very small' (with-out exact measurement) i'd say it's about 6 X 6' i no its small, but i have no choice really because i have a wife if u no what i Rating: 5