So I've got a three week old plant that's going outside soon. I plan for it to finish outside, but there is a chance I'll need to bring it back inside in the last few weeks of flowering. I want to transplant right into the soil for the benefits of using more rainwater, etc. Is there a way I could still easily transplant it into a pot after this. I read something on here about tupperware (rubbermaid) containers under the ground? Any insight would be great, thanks.
You will destroy the root system if you up root from the ground...get a large 20-gallon or bigger container and plant it in that...that will be large enough to support a large plant (only pure sativa's that grow long and tall will be restricted slightly). As far as the rubbermaid tubs in the ground...those I believe are used for swamp areas...not sure what thread you saw though...but they use those and cut the bottoms out so the plant has plenty of soil but can still access water...but they dont up-root the plants using that method though...