how much water does the average plant use?

Discussion in 'Indoor Growing' started by ThePsilocyber, Sep 16, 2018.

  1.  
    ThePsilocyber

    ThePsilocyber Active Member

    if i have 7 gallon pots and lets say 4-5 ft tall how often and how much should one water? also how often should i water/feed? thanks in advance!
     
  2.  
    raggyb

    raggyb Well-Known Member

    For some reason I'm suddenly craving fried chicken. Why? I Like your emoticon.
    Anyhow, do you mind a guess or wrong answer? 2L/2Qt every 3 days. It will dependingly vary on lighting and soil medium too, so what you got?
     
    ThePsilocyber likes this.
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    ThePsilocyber

    ThePsilocyber Active Member

    haha thc infused fried chicken with a side of green mac and cheese and mashed potatoes with a little cannabutter on the top leeeeeeeego xD . and no i dont mind guesses im just looking for rough estimates or if someone has had the experince with thsi size pot. also ill have 5k watt lighting for 35-40 plants
     
  4.  
    raggyb

    raggyb Well-Known Member

    No wonder! You probably have some calculating to do for thinking ahead. I'm just doing this a little while. My answer based on 4 gal cloth pots and I guess similar light to pant density and increased x 7/4. Soil with perlite. I kept on the dry side to keep fungus gnats away which for that at least worked well.
     
  5.  
    ThePsilocyber

    ThePsilocyber Active Member

    haha right! and being in cali water is quite expensive if i buy jugs or barrels im wondering if tap water will be okay if i let it sit out for 24 hours
     
  6.  
    raggyb

    raggyb Well-Known Member

    Supposedly tap should be ok. Try to find your community report for the water's chemical analysis to see what they treat it with, probably chlorine or chloramine. Let it sit 24 h or more and chlorine I think halves. Chloramine less so I think but nothing you can do. I let it sit anyhow. With the top off of course. Also check your tap's pH. If 7 fine. If 8, may be a little troublesome and if it were me I would pH down. If it's hard water it probably has calcium so then you can add less of that to your nutrients. But for your size I might invest in the reverse osmosis if there is anything wrong with your water and depending on your medium.
     
  7.  
    somebodyhearted

    somebodyhearted Well-Known Member

    depends on your environment;temp, humidity, plant health, age, light source, air quality/exchange.
    I water 2 gallons of indoor dirt with about 1/2 a gallon of water every few days
     
  8.  
    ThePsilocyber

    ThePsilocyber Active Member

    i dont have the cash flow for ro, i might look into just buying barrels of water for cheap
     
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  9.  
    ThePsilocyber

    ThePsilocyber Active Member

    when you say 2 gallons of dirt, do you mean two gallon pots?
     
  10.  
    somebodyhearted

    somebodyhearted Well-Known Member

    no, 2.5 gallon containers, with 2 gallons of dirt. I like some splash space on top.
    when I used 5 gallon pails/4 gallons of dirt I used 1 gallon of water ever 2/3 days, or when the bucket was light.
     
  11.  
    somebodyhearted

    somebodyhearted Well-Known Member

    of course the substrate needs consideration. at one end say perlite vs pro mix vs miracle grow. perlite would require more watering frequency than pro mix etc.
     
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    ThePsilocyber

    ThePsilocyber Active Member

    ahhh okay and thats in flower?
     
  13.  
    ThePsilocyber

    ThePsilocyber Active Member

    i would be using FFoF
     
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    somebodyhearted

    somebodyhearted Well-Known Member

    yes,(sry) in flower
     
  15.  
    Roger A. Shrubber

    Roger A. Shrubber Well-Known Member

    plants aren't fish, they like a little chlorine. unless the ppm in your tap water is outrageously high, it ought to be fine for your plants, better than ro water, in fact.
    as far as how much water they'll use, depends on the temps and rh in your room, the airflow in your room, how many leaves the plant has, the overall size of the plant, the intensity of your lights, the makeup of your growing medium........kind of hard to answer, even if you provide all that information.
    i find in general that once they get past seedling size, it takes about a quart every two to three days under 20 hours of light. once they start to get bushy i slowly start to up it. by the time they're ready to go into the flower tent, they're usually taking a half gallon twice a week.
    once they go into the flower tent, it can easily go to a half gallon every other day, then a gallon every three days, sometimes every two days.
    thats in 7 and 10 gallon smart pots. plants are between 3 and 5 feet, call it 4 feet average. lights on temp is 77-78, rh is 45-50, in peat with 25% perlite added
     
    coreywebster and GroErr like this.
  16.  
    GroErr

    GroErr Well-Known Member

    In flower I tend to average 1L (~quart) per gallon of medium every 2-3 days depending on the plant and the environment.
     
  17.  
    ThePsilocyber

    ThePsilocyber Active Member

    thanks for the preciseness of your answer! should i add anything to my fox farms ocean forrest?
     
  18.  
    Roger A. Shrubber

    Roger A. Shrubber Well-Known Member

    maybe some extra perlite, otherwise it's plenty hot enough without adding anything to it for at least a month
     
  19.  
    ThePsilocyber

    ThePsilocyber Active Member

  20.  
    adower

    adower Well-Known Member

    I run 30 site two gallon pots in a hydro system. During heavy veg/flower they go through 110+ gallons a week.
     

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