Hey! I'm going to start my next grow with a 720w LED. My question is how many plants and what size fabric pots should I use? I'm torn between the 11l and 19l ones; I want big plants with good yields!! I'm starting with Gelato cuttings.

Hey friend, in my humble opinion, it's better to go for 6-9 in 10L pots, you'll work more calmly and without setbacks, it's simpler. Dude, you're starting with great and powerful equipment, I think you'll do really well with your setup, good luck buddy 💚🍀🌱🍀💚

We have a FLUXShield Babo 450C from Crescience with 160 watts and we're using 19-liter pots. The yield is absolutely great. We've noticed that the distance of the lamp to the plant is important, not necessarily the wattage of the light. I would definitely recommend a 19-liter pot. That way, your lady's roots have more space and she can grow better accordingly. :-) I'm curious to see what you decide! 😉

You can't say that so generally. The bigger the pot, the more root mass the plant will develop. With 720w lamps, you're looking at a 120x120 (flowering) to 150x150 (growth) area. I currently have a single Laughing Buddha in a 45l bucket. You want big plants, so I would say 4x19l. You could also set up 9x11l or 36x6l. The result will always be roughly the same, give or take.

To make getting big plants and big yield easier use big pots pal

Hi.....I wold recommend 19L......the larger the pot, the more roots, the bigger the buds. BUT it depends on how many plants you want to grow. I f you grow on 1.2m/1.2m, you could use 4 19L pots, give them 4/5 weeks of vegetation and tent might be full. If you want more plants, then give them smaller pots. I would do that if I want to grow very different varieties. 720w are "good" for use in XL growboxes, but can be too much light, depending on lifecycle stage. If they are young, you shouldnt give them the full 720w.

Definitely 19l pots for photoperiod plants. 4 - one in each corner is probably ideal. The beauty with photoperiod plants is that you can veg them for as long as it takes to fill the available space. Growing cuttings ensures that growth and maturity will almost certainly be even between each of them, greatly simplifying your cultivation. Not cutting the leaves off will ensure maximum energy is produced, thus ensuring fastest growth and maximum potential.

** error -- "bigger plants don't *necessarily* give better production" and relative to indoor growing only. Sea of green can give just as good of production per area. Outside is a different animal.. There is no difference in intensity of light from top to bottom on plant, unlike an artificial light indoors.

How many plants depends on the size of plant you want to grow. How big of pots depends on the size of plants you need to grow. Bigger plants don't give you more production. So you make a few decisions, and the rest is determined by those few decisions. 1) how big of an area can you provide 35-40 DLI to? With photoperiods, work backward from 12 hour needs as they are higher. 2) How long of a vege phase do you want? Shorter vege with more plants saves money and time, but there are other considerations. Between those 2 questions, you don't need anyone to tell you how many plants or how big of a pot you need as they should compliment the above choices. Production / vege length Many smaller plants that fill the same meters-squared will give the same yield as a few big plants with the same size canopy. The many plants will take less vege phase time to get there and save money. I'm not saying that's always the best way to go. For example, if you want to take clones you probably want 5-6 weeks of vegetative phase. In a well-run setup, that'll consistently produce a plant big enough to fill a 60cm x 60 cm footprint and a ton of cloning opportunities that won't impact yield. Slower/faster growth rates obviously impact this estimate. Max area for canopy relative to power of light: Depending on efficacy of that 720w light, you can probably cover 1.8m^2 to 2.3m^2 (20-25 sq ft), give or take. This should be based on umol/s PAR production of light over 12 hours and general shape of fame + light distribution pattern (i.e. rectanguls vs sqare footprint etc) ... is it reaching 35-40 DLI or thereabouts? Hanging distance is determined by best coverage wall-to-wall without sacrificing overall average. I'd suggest sticking a number of plants that easily divides the space between each plant and doesn't require any elaborately shaped plants (training effort) to fill out the canopy. Pot size - generally, 1 month of growth per 1 gallon (no idea if it refers to gallons or trade gallons.. it's anecdotal like "1 foot of vertical growth per 1 gallon" estimate) With a 5-6 week vegetative phase, I use "5 trade gallon" pots (trade gallons, US standard for pots, adjust as necessary for your local pot size standards) and it's slightly too big but still see roots throughout the volume when done. 3 trade gallons might work, but rather not push it. I am in soilless, so that can make a bit of a difference too. Generally need a bit more soil by comparison. I'd only use the 11 L pots for 4 weeks or less of vegetative phase plus flower. That's 3-3.5 months for most plants. Use the 19L for longer vege phases / longer grows. Do make sure your region measures pots the same way, not refering to metric vs imperial. a trade gallon is not a liquid gallon. My "5" gallon pots are ~3.7 gallons volume. 10 trade gallons = 1 cubic ft, if i recall. 7.55 gallons per cubic foot... roughly 1/2 cubic foot pot size or 5 trade gallons is ~3.7 gallons This may take a little trial and error before you find everything that fits well together. I've grown 8-10-and-12 plants before i settled on 8, all other factors the same. I've slowly adjusted my canopy management over the years to streamline things, too, experimenting with different number of colas per sq ft to maximize convenience, minimize pathogen risk, maximize yield and ease of trimming. Being consistent and systematic allows for optimizations that you can't effectively implement, otherwise. Each to their own on that. Took me 2-3 years to settle on a consistent grow process and incrementally improving that process each year since then.