Pot size containers

Thanks for everyone’s information I got a 4x8 tent with two 2000watt led lights using a high end pro mix and advanced nutritiona ph balance

It depends on how much space you have and your growing technique. If you are dense packing them in a tent and doing a short veg your pots might be OK. I personally do not grow anything in pots smaller than 5 gallon, even when doing a short 4 or 5 week veg. With a 4 or 5 week veg my plants roots have densely filled every bit of a 5 gallon fabric pot. If just growing one plant in a 3x3 tent I go with a 10 gallon fabric pot and will veg for 6-8 weeks. And, at the end of the grow the roots have completely filled every bit of the 10 gallon pot.

it depends on the medium that you are using to grow them in. If you are going peat based or super soil, growing organically, you will need bigger containers most likely. Organic growing uses soil microbes to make plant available food, and for this you want as much space as possible for these microbes to thrive. 7 gallons would be minimum. If you are using synthetic nutrients then you don't need as big of a volume of medium. If you are using coco with synthetic nutrients, on high frequency low dose feeding, then you can get monster sized plants in 3 gallon fabric pots. You'll probably only need 4 weeks to get the plants to the size you want them. Vegging white widow until 36 inches tall, will give you a 6 foot tall plant by the end of the stretch if you are not bending them down, so factor that in too. Im guessing you'll be using a screen to manage the stretch. Also, are these fabric pots or plastic? With fabric pots you won't get root bound, as the roots are air pruned as they reach the edges. In plastic pots you could get a tangled root bound mess which will be hard to correct later in the grow, ultimately affecting plant health and yield. Lots of factors to consider, I use 3 gallon pots for synthetic grows and 7 gallons for organic, both fabric. Although right now, I've got a grow going with organics in 3 gallon fabrics to see if I can pull it off.

I use 5 gallon pots and each of my girls take up a 2x2 ft footprint. Really all depends on how much space you’re working with.

I’m planning on letting plants grow to about 36 inches before switching to flower

3.5 gallons would work but as stated the bigger the pot the bigger the plant.

Thanks :)

You can use that for veg. I would get bigger pots to transplant in later. I like 7-10 gallon pots it works for my space. The bigger the pot the better.