I think one small plant per square feet.

I’d say you’re going about it the wrong way. In my opinion it shouldn’t be a matter of how many you can physically fit. That is one option for sure, but I think it will lead to other problems. I’d suggest finding a plant density that produces an optimal equilibrium naturally and then you don’t have to worry as much about controlling the environment.

Putting as many as you can fit I’d think you’d definitely start running into humidity and potential mold problems. All those extra plants and watering that’s required you will be dealing with excess humidity due to evaporation and transpiration, airflow issues, etc.

Having too few plants and you’ll constantly be chasing an optimal humidity. I find my ideal is 4 plants in a 3x3 or 6 plants in a 4x4 all in 5 gallon pots. Just something to consider, whatever you do, if you run into any sort of problems, changing the size and number of plants can make a difference.

ICWiener said:

Go for it! Stuff as many under the light as you can. Forget about a harvest every two weeks for now. Just fill that flower room with clones and hit it.

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have a question about planting multiple plants in plant pots i built out of pallets. we all know most pallets are 4ftx4ft so the pots i built are 16 square feet round and 4 feet deep soil is a tad over 2.5ft deep i have four pots built out back i have 40 ploants in one pot and 40 plants in another pot just until i can know how many are males and how many are females then all females are going into one pot. my question is how many plants is to many to put in one pot i figure out of 80 plants should get around 30 females with a prayer lol. is 30 plants to many for pots this size? and also wondering how im going to separate the males away from females without disturbing the female roots if the males intertwine with the female roots. also maybe with say 30 females it would be better to put 10 plants in each pot. Also how much dirt should be in a 16 square foot pot for 30 plants or how much dirt for 10 plants iv thought of filling the pots lol give those plants roots to have room to have soil to share with each other.would be nice as well to know how to tell early what are males or not before they even grow pollen sacks any answers would be a very very big help. I live in maine i mixed cheap soil with coast of maine potting soil and fertilized the cheap dirt with 10 10 10 fertilizer their growing great so far just dont want them choking each other to death. gave them coffee water for nitrogen hope they can get some sleep lmao

Required watts per square foot of grow space using quality LED Lighting is 30 watts.
4x4=16x30 watts = 480 watts . the cheaper or misleading or older (blurbles) are grossly over rated.
And if you read in the specs it has to have actual watts being drawn or used .
Certain Grow lighting companies keep actual wattage like in the small print.
Flowering your plants need far red and photo red in color spectrum.
Cannabis loves it's IR color spectrum for dense bud production.

Myself I like to assemble my grow lights.
These are 160 watts per board . the newer boards I am now using (No photos ) are the HLG 2V 288 Rspec boards R for red color spectrum.
Other is I like the power suppliers on the outside of the tents,

Now I use 6ft*6ft grow tent with 9pcs plantings, very suitable!!