Grow tent, how many plants?

I just received my grow tent and my first grow of only 2 plants (with no tent) is just weeks away from harvest. I’m planning out my second run but I’m not sure how many plants I should put in this tent. I will be growing godberry and Dr. Kush both fem seed plants. The tent is 48×48×72. Attached is my makeshift tent I thru together in a pinch when I spontaneously decided to grow these 2 clones inside. If anyone can spot any thing I should be doing different please let me know. Thanks in advance


I would think you can do 4 plants comfortably. Im on my first grow. 8 plants. I bought a 4x8x72 tent and a 8 bucket hydro system. 2 days into germination and I had to move my tent and was not able to use it so I am growing all 8 in soil in my closet. But I set my 8 bucket hydro system up in my tent like a mock set up and I had plenty of room in the tent.

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I agree with @Grinder0327. Four plants will fit nicely into that tent and leave you plenty of room to move around and adjust things as needed.

Four plants should fit well in that size tent.

Thanks everyone. I’m going to need to get another tent. I am expecting another light to be delivered tomorrow and I think 2 lights would be overkill for 4 plants. They are both 1500 watt but only putting out something like 185

I’m assuming they’re LED’s?

Two lights at 185 actual watts each. 2 lights may not be enough.


Also, the spread is equally important.

6 plants and in 5 gallon air pots with no problems and have enough room to make portable sog

Um i bet you could fit one big ol’ fat mama in there! Man could get so much with just the one and no over crowding… Sorry im an outside grower lol. I like that set-up tho looks nice.

Yes they r led

Somebody correct me if I’m wrong (@dbrn32) but I’m fairly certain with LED’s you should be more worried about PAR and PPF rather than actual power draw.

Edit: I’ve been reading about PAR and PPF from books, but it never actually clicked in my head until after I read this article:

I’d like to find an article that lists how much PPFD a Cannabis plant can withstand with and without Co2, along with the recommended amount if anyone happens to know of one!

Well, I found an article for it if anyone would like a good read:

And for those of you who enjoy a tl;dr:
So for cannabis, bottom threshold for optimal growth and photosynthesis is a DLI of 22 would be:
24/0 schedule: 254.6 micromoles/m2/s-1
18/6 schedule: 339.5 micromoles/m2/s-1
12/12 schedule: 509.25 micromoles/m2/s-1

For Cannabis, the Top threshold for optimal growth and photosynthesis is a DLI of 65 moles per day.
***extremely important notice, only go up to these amounts if you are using supplemental CO2, do not go this high if you are not using supplemental CO2 as you will actually slow down photosynthesis and waste energy.

24/0 schedule: 752.31 micromoles/m2/s-1
18/6 schedule: 1003.08 micromoles/m2/s-1
12/12 schedule: 1504.6 micromoles/m2/s-1

The generally accepted guidelines for artificial light PPFD in flowering are this:
in a 12/12

PPFD of at least 510 micromoles/m2/s-1 for the low end of optimal intensity
PPFD of at least 800-1100 micromoles/m2/s-1 for perfect optimal lighting without additional CO2.
PPFD of at least 800-1500 micromoles/m2/s-1 for perfect optimal lighting WITH additional CO2.

Google is amazing.

You’re not wrong. Unfortunately a lot of the budget panel manufacturers are afraid to list ppf.


They’re not 1500 watt they are 1500w whatever that means. You will need 800 watts of Chinese Amazon or Alibaba lights for 4x4. I have a 4x6 area to grow but usually use only 4x4 most of the time. Until I built a good light, I had to use 3 of the 600w (300 actual watts) Amazon lights for that area. The biggest thing I’ve found is these plants respond good to very bright lights. Light intensity is very important.