Three's Company, one Pot? Grafting or Pheno Cage Fight?

From a simple mathematical point of view anything is possible, but it would require a low level of metabolic baseline to take 3 in such a small pot. If you attempt 3 in one pot at a minimum you need 15-20 gallon to make it through 18hours, with any sort of meaningful metabolic temperature. More temp = more cooling = more transpiration = more water. Its less about what you can and cannot do and far more about realistic expectations. We do not grow, we facilitate energy conversion. You are asking 3 plants to grow with such small gas tanks they can't even make it to the finish line after 18 hours above 80f..... You would need to supply water multiple times a day once canopy developed, this can wreak havoc with efficient cellular respiration come nightfall with dense soggy soil. Every carbon molecule split requires 6 molecules of water to do so. Your final harvested plant is 46% carbon, you want fat yield you better give her unlimited access to water tanks. There is no such thing as too much water, only water that sits too long in the same place. The environment must dictate the level of response. Ideally you want to sorta use pots large enough to hold enough moisture capacity so you only water every 1,2 or 3 days depending on how fast evapotranspiration occurs. Want to build a regular wet dry cycle. Clockwork. Can't do that with small pots efficiently unless you can dedicate serious time to maintaining the extra work daily to do so. Why water 4x a day when you can do it once, not thay you can't, merely a time thing. Time is money, by week 15 you are pulling your hair out because you missed 1 watering and fried the trichomes off. Oopsy. Work a synganic living soil in 100 gallon 4x4. Reaching 2.21g/watt. Little more than adding water, I do feed the rhizosphere and use synthetic nutrient delivery to signal autophagic responses that are not so easily initiated using tradiotnal synthetic methods, as they don't work the same way using a rhizosphere and organic nutes. Using biochar organic biology for structural nutrition while leveraging precise synthetic inputs as chemical triggers rather than primary food sources. A 4x4 bed holding 100 gallons of soil provides massive thermal and chemical inertia. This scale allows the microbial loop (mycorrhizae, saprophytic fungi, and rhizobacteria) to colonize deeply. When you introduce synthetic delivery, the soil biology prevents salt buildup by processing or binding excess ions, allowing you to reap the benefits of systemic signaling without burning the roots. Gluck