First larger setup 15 plants

I recently was approved by the canadian government to produce 15 plants. (yipee!!)
I have a roughly 20'x11.5' garage to do it in. money is not really a concern here.
I am putting in a heat pump for temp regulation so heat is not a concern either.
With 15 plants and a room that size, how many lights should I use to get the maximum
yield possible? and how should I situate them?
I will be most likely using a Critical Kush strain for this first grow

Any help would be great.

200sq feet of space. 1000w lamp covers 4x4 or 16sq feet. 200/16 = 13.75. You will need to get around 14 1000w lights. If you want maximum yield for a small number of plants then SCROG is the best method. It does have a longer veg time but with 14 lights you could have 14 plants scroged to 4x4 and a plant for a mom maybe.

So 14 1000w, all from the top? Where can I get good SCROG technique guides? I know only little about it.
What would you expect for a yeild fo a setup like that?

In SCROG setups all the light is all from the top.

https://www.rollitup.org/advanced-marijuana-cultivation/515987-enter-scrog-scroggers-united-post.html
http://www.420magazine.com/forums/how-grow-marijuana/72205-what-scrog-screen-green.html

Yield depends on a ton of factors but for a beginner expect 0.3 to 0.6 grams per watt or 4,200 - 8,400 grams
For a experienced grower in a dialled room I would expect 1 gram per watt or 14,000 grams.
With scrog setups there is less need for penetration so 600w lamps might work for you too. I have only done one SCROG and it was alot smaller than the space your dealing with.


You can also look into LST and Topping and just make those 15 plants into bushes. This will require more side lighting and you will get more popcorn buds.

Here is a lst/topping method called mainlining created by nugbuckets which is also really impressive. Here is a link
https://www.rollitup.org/subcools-old-school-organics/542308-main-lining-thread-113.html#post8125364

you do NOT need 14 1000 watt lights for 15 plants. Absolutely do NOT do this. It is a complete waste of light for that number of plants. Max for 15 plants that you would need for maximum efficiency to yield would be 2 1000 watt hps. yes you could fill out plants to this big, but i still think it would be a waste to run this many lights. He would have to veg his plants for 3 months to fill out each light.

15 plants can be grown into trees as well. 15 huge trees would be too big for 2 1000w lights. I took the question as to mean how can i fill up this space with the most amount of weed and price doesnt matter.

he said money was no object. it would indeed take a long time to fill a screen 4x4. This setup is not the quickest or cheapest but it would produce the most amount in your space with the least amount of plants. Most people do not want to wait for a plant to fill up a screen that big so yeah.

If you want to keep price down to a normal healthy level go with 2 1000watters and lst mainline or top them.

cdub is correct this would take a long time to fill. I would probably cut this in half and do 7 1000w and 2 plants per 4x4 net. or one per 2x2 net.

basicly I want to yield the most that I can in a 12 month period using 15 plants in a 11.5x20 room.
I would like to see at least 10 pounds. are 2 1000w able to produce that? I have no problem getting 15 1000w if it means a signifigantly larger crop.

10 pounds is 4,535 grams. You need 4 to 8 1000w lights to do this assuming your getting 0.5 to 1 grams per watt respectively.

I have got nothing to do so I will share with you what I am thinking just now, whether it's a good idea or not...

Divide your garage into a veg room and a flower room. Determine the amount of weeks you will be flowering (you will have to do 1 strain to get the best yield with my non proven system, 1 strain a year maybe ...)

Say 8 weeks.

You will have to use the mainlining technique.

You start 1 female a week, vegged from clone for 7 weeks starting the first 2 weeks under 100 watt LEDs, next 2 weeks under 200Watts LEDs, next 2 weeks under 400Watts LED, next week under 600Watts LED --- END OF VEG TIME

now it's your own preference, for so many lights you will probably go HPS here (the debate is on for flowering but LED has proven to veg better than anything else...) A bunch of 600Watts lights, maybe a few 1000s and the last week can be under 400Watts as well


Not so clear but if you can sort of punch in the numbers, you could be harvesting 1 huge plant every week, not using so much power (you would be more in the 7-10000watts range as opposed to 15x1000watts ...

You have something like 200 watt LED for your baby (1-2 plants)

sorry probably more simple, veg 7 plants for 8 weeks, flower them for 8, so 7+7+ you mother plant = 15 plants, keep your clones at a friends house if you are so worry about plant counts

sorry, yeah 2000 watts wouldnt be enough if u want to yield 10 pounds. I was just saying 14 1000's is overkill. You should probably do something like 2 plants per 1000 watt light in dwc, and veg them until they are huge(toping and lsting or super cropping the whole time), or until they fill up the whole screen in a scrog of some sorts. Its all up to you, theres a lot you can do, but dont expect a fast turnaround time at first. You are looking at at least 6 months from start until ur first harvest if you plan on growing trees that are huge.

well, will 2 plants on an 8week veg on 1000w fill a 4x4 screen? what would you need per plant on an 8 week veg?

havoc902 said:

well, will 2 plants on an 8week veg on 1000w fill a 4x4 screen? what would you need per plant on an 8 week veg?

Click to expand...

yeah two plants would for sure be able to fill a screen with an 8 week veg. Im unsure about the second question you are asking. Can you clarify?

Basicly just asking what size net I would need with 8 week veg. So if I put 2 plants under a 4x4 screen with 1000w for 8 weeks ill be good? What size pots should I use?

I am use to using 5 gallon buckets, if I used larger 90gallon tupperware containers, would it make a huge difference?

I wouldn't suggest going over 5,000 and i bet you will not need to heat anything up if anything you will need a/c cooling just to cool off the lights it takes me 12,000 btu and good michigan cold weather to keep it at 75 but i like to keep it at 68 how much money do you plan on investing? I wouldn'tassume you will yield 10 pounds or 1 your entire crop my die never assume always go lower

You can use any pot size but remember to beg after you change pot s because it will take a long time to take root on that much soil, i use 5 gallon and used 18 gallon i wouldn't go over that size as its overkill but the bigger pot the bigger the plant and stalk will get bud could depend on many factors

my friend, in this world there are so many factors you will need to consider. you will have to learn the first time, second, and possibly third as well to get the flow down correctly. start by reading information at any source you can. I have found that the ppl on this forum are very helpful. I've read havoc's journal's and they helped me immensly. Goodluck on your grow and be sure to post some pictures as they are worth 1000 words!!

E.