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How Big Should Pot Be?

Discussion in 'General Marijuana Growing' started by J.S.L, Oct 2, 2011.


    J.S.L Member

    How big should the pot be for an 18 inch plant?

    tomato57 Well-Known Member

    Rule of thumb is 1gallon/foot. So 18 inch is something like 1.5 feet = 1.5-2.0gallon pot.

    happy growing!
    Jakabok Botch

    Jakabok Botch Well-Known Member

    i like to stay minimum of 3 gal tho.....but thats just me....

    jawbrodt Well-Known Member

    I like the '3 gallon minimum' suggestion, as well. Bigger is always better, easier to water and maintain, etc....plus, plants end up bigger than expected, usually, when starting out.lol

    Shadeslay Active Member

    For that size I would say 3g as well.

    If my veg/flower was expected to be more then 2.5-3 months I would consider moving to a 5g or larger.

    Jogro Well-Known Member

    2 gallons is probably a reasonable place to start the discussion, but this isn't as simple as it might seem.

    What strain you use, how you train the plant, how much nutrients and how much light you use will affect the plants height. Most strains simply won't want to complete flowering in a space that small.

    Its possible to grow an 18" plant through flowering in a coffee cup, and its possible to do it in a 5 gallon drum.

    If your total vertical space is limited, you'll probably want to start off with a SHORT pot to limit your overall height, and train the plant to complete flowering shorter.

    panhead Well-Known Member

    Floor space allways dictates what size pot i use,the old rule of thumb where we are supposed to use pots with one gallon for every month the plant is alive is complete bs.

    You can grow monster plants out of 1/2 gallon pots,i personally prefer smaller pots,the soil drys much faster ,there is no chance of root rott with small pots,its also very hard to over water.

    For my soil plants im growing right now im using 1.5 gallon air pots,the sides are slotted so the soil drys out extremely fast, grow 3ft to 4ft plants using these pots with yeilds of about 4 ounces each plant.

    I grow flood & drain now days but for years soil was my main method,floor space was premium,i grew 3ft plants using all 1.5 QUART pots,i had excellent results too,in bud i had to water 2 or 3 times a day until i started using a drip feed system,ive also never had a problem with plants being rootbound,the plants are not alive long enough for root growth to be an issue,once plants are budding root growth all but stops so its never been an issue at all.

    jpill Well-Known Member

    go 3-5 gallon pots!After all ,The bigger the root the bigger the fruit !!

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