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How Many Plants For This Grow Setup

Discussion in 'Growroom Design & Setup' started by Weedbro95, Feb 14, 2019 at 5:13 AM.

  1. I plan to get a 8x8 tent, 4 air cooled hood 600w hps lights, and grow 3 different Indica strains. My question is what would be a good pot size and plant count? My veg tent is only a 3x6 so I don’t have room for many. Thanks on any suggestions!
     
  2. Nugg

    Nugg

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    I give 3×3 for each of my plants..
     
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  3. I’ll be vegging in a 3x6 tent with a 600w mh light. Veg will last 2 months, so how many in there and what pot sizes? Then what pot sizes when I put in the flower tent. I also got two led lights I could use to help veg if needed. Thanks
     
    Last edited: Feb 14, 2019 at 6:35 AM
  4. Nugg

    Nugg

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    I can't help you with any of that..I don't grow that way...but keep in mind..when you switch over your plants will get 2-3 times bigger and you'll need room to maintain..good luck, somebody will chime in.
     
    1diesel1 likes this.
  5. Other suggestions?
     
  6. JWM2

    JWM2 Premium Member Supporter

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    General rule of thumb is a gallon per ounce. You can get more than that but as a baseline it’s a good rule to follow. If you feel the pots are too small then go a little bigger and vice versa.
     
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  7. Another guideline i have found useful is a gallon of media per foot of plant.

    Also a gallon per month of growth.
     
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  8. But how many do I know for this setup?
    If I got 4 600w, you think 2 plants(6gallon pot) per light would work well?
     
    MIMedGrower likes this.

  9. I like 4 plants under a 600 in a 4x4 area. But with long veg you might fit less. I veg 5-6 weeks from seed and sometimes only can fit 2-3.
     
    Weedbro95 likes this.
  10. My flowering tent would be a 8x8 area and I plan to veg two months.
     
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  11. Dirtbag

    Dirtbag

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    I also have an 8x8. 9 plants in 7 gallon pots is Ideal. 3 of each variety. You can take cuttings a week into flower and keep them under T5HO bulbs in pre-veg for basically the whole flower cycle in 1 gallon pots, then transplant into the 7 gallon pots when the flower room is empty. Veg for a couple more weeks in the big pots then flower. Rinse and repeat.
    It will give you a crop every 3 months.

    Personally I wouldn't use HID for your small veg room. They'll get too big before you can move them into the flower room. 2 months under HID is a long veg imho and ideally you want to veg until the flower room is almost full. You cant do that in 3x6. You'd be better off with a longer pre-veg and then transplant into the 7 gallon pots and turn on the MH light a few days/week before the move into the big room.
     
    Last edited: Feb 15, 2019 at 1:03 AM
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  12. Only way you will know is to do it. The old school guides put 16 in a square meter (or a 4x4) and when the leaves touch they switched to 12/12. I do 3-4 because of plant count. Every grow can be different. There are too many variables to even hazard an educated guess what will end up working for you.
     
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  13. Dirtbag

    Dirtbag

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    The guy who first showed me how to grow back in 1997 did 50 plants in 1 gallon pots per 4x4 tray under an aircooled 600. Vegged 2-3 days and flipped. He didnt give AF about numbers lol
     
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  14. For a comparison,

    Got to have powerful lights and a high ceiling for this. I have to stick with 600’s (or comparable) and #3 nursery pots. As I have a 6.5’ max height and use light stands.



    For veg i stick with t-5 fluorescent for the reasons you state.
     
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  15. Dirtbag

    Dirtbag

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    Sort of. I have 9' in the center of the room and 8' on one side. But, my plants are 1.5 feet off the ground on the sides, 1 foot off the ground below the bulb and I always finish with a couple feet of space above the lamps. And that's with bare bulbs. The extra area is really to act as a climate dampener.

    You can really only get a couple feet of penetration with HID's so I bend the plants out and stake them so they arent super tall. With 4 aircooled 600s you could get closer to the plants than I do with my 2 x 1000's
     
    Last edited: Feb 15, 2019 at 1:21 AM
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  16. Dirtbag

    Dirtbag

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    Hard to see the extra space but there is about 2.5-3 feet above the lamps here. If you cut out one week of veg they would be even shorter. Or you could just bend them down more. 20190213_185720.jpg
     
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  17. Thanks for the responses. So if I have 4 hoods and 9 plants, wouldn’t the distribution be uneven to have 2 plants on each light then one with 3 plants? Also would two 450w led’s (400 true watts combined) work fine for the veg cycle? Thanks for the help.
     
  18. Dirtbag

    Dirtbag

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    Looked like this a couple week previous. This was with one week of Veg under 1200 watts of MH after coming out of pre-veg. 20190131_191648.jpg
     
  19. Dirtbag

    Dirtbag

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    No, imagine you are lighting the room, not the plants. Space the lights evenly so each covers a 4x4 then space the 9 plants evenly underneath. Imagine a tic tac toe grid, put a plant where the X's and O's go, then put a lamp where the lines intersect. I mean, it wont fit exactly like that, but you get the idea.

    As for the LED, it will grow plants well for sure, but I still feel the plants could overgrow your veg space under that much light. But it's hard to say without trying it first.. I purposefully try to keep my plants small and manageable until I have the space to let them go.

    Only one way to find out...
     
    Weedbro95 likes this.

  20. Right. I only use half that now but i see stress at about 18” from the glass.

    Now if we are pushing for yield i got room but for the most canabanoids i like them to stay cool and comfortable.
     
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