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Soil to pot ratio?

Discussion in 'Indoor Growing' started by Dropastone, Jan 27, 2010.


    Dropastone Well-Known Member

    I'm a total indoor noob and I'm working on my first 3x3x8 grow room and I trying to figure out how much soil to buy. How many pounds of soil will fill a 3 gallon container? I might be ordering it online and need to know.

    Also can you recommend some good soil to use that wont break the bank. I know you get what you pay for. I'm looking for something that wont have weeds or bugs in it and is already PH friendly?

    Any help will be appreciated.

    CLOSETGROWTH Well-Known Member

    Lots of different soil mix out there. Fox Farms is good. I would say a normal bag of soil will over fill one of my 7 gallon planters..so, ... If you really have to have your soil shipped out to you, It would be ultra expensive. You may consider going the hydroponic route. Much easier, especially in your case. 5 gallon bucket air stone, nutes, some clay pellets,rockwool.. and your on your way to a dream grow. Best of luck in your decisions, and grow :)

    whitefrost Active Member

    if you go hydro you will only need a 5in pot and about $15 worth of media just throwing it out there

    whitefrost Active Member

    took the words right out of my mouth closet

    greensister Well-Known Member

    You cant go by weight, you have to go by volume.
    3 gallons is .4 cubic feet and .015 cubic yards.


    There is a calculator for your conversions.

    I mix my own soil. Its simple and pretty cheap, but it gives me good results and complete control:

    50% compost
    25% worm castings
    15% coarse sand
    10% perlite

    You can change the percent to cups, gallons, handfuls, or whatever unit you want. If 50 is too much, move the decimal point one digit to the left:
    5 cups of comost
    2.5 (2 and 1/2) cups of worm castings.....etc.

    Either way, the mixture equals 100, so if you use cups this recipe will yeild 100 cups.

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