So... do many/most folks use their medium more than once? Seems like a waste not to, but I want to be successful and not "cheap out" either! what I have; last (first grow) medium was coco/compost/vermiculite/worm castings. It seemed kind of "tight"...I'd like a looser mixture this time as I've found we have high PH water and I would like to water for runoff each time, so I can keep a good handle on things. I planned to add a good amount of perlite and more coco to achieve this. I was really curious when I pulled these plants as to what the root structure looked like, 5 gallon fabric pots. Was surprised to see the pot virtually filled with tiny roots, and virtually no big roots. Assuming this is normal for cannibis...should I try to remove (screen?) as much of the old root growth as possible? maybe this is why several folks have said they rotate medium....is this to let it "work"....or is there nothing left working in there?? LOL PS...pots were very mildly rootbound on the very bottom, no sign of salt buildup, roots looked basically healthy) I (think I) know there is virtually no nutrition left in there now (used by first grow, thoroughly flushed to low PPM) so I expect I will have to add something food/fert/nute-wise for the young plants...I plan to transplant them with what I've start them in, a solo cup of seedling mixture, but I expect they will need something more that that in the medium they are planted into. Maybe a bag of one of the grow soils, or? Kind of spinning my wheels there... thanks for any insight!
i am using a hybrid of exactly that that i added promix to and more perlite and the 3plants are happy and healthy i just broke it up by hand and used a tarp then dumped some red promix more perlite so it is not quite a coco grow not quite a soil grow but it drains well and can go a few days inbetween watering But to answer the question Yes you can reuse it i like to pull out some of the roots but not all
that is exactly what I was looking for, and hoping to do. Did you mix the medium from your prior plants/amend it...then refill pots? Only thing I'm not familiar with is the Promix. Maybe it's what I want as well. Have you used it for long? edit; I see promix is Mycos...I have a bag of Mycos inoculant I was given that I planned to include, but as I understant it Mycos isnt food/nutes, just beneficial to nute uptake. Seems I need to add...something, to my medium for early veg stage, since it will transplant with a minimal amount of seedling starter in a solo cup.
it very much deals with the amount of nutes you have added since the start, you can get an idea of by measuring the .ppms of the soil, I go organic and add only teas, so at the end of the grow my nutes have eased allowing it to be reused, the expensive fox farm ocean forest is expensive for many and growing weed you need not add nutes, many don't and later to reuse the soil simply top up with some fresh FFOF, IMO add 25% perlite to any ffof grow ....its hot stuff cheers
YES MYCOS is very important during transplant and you can add it to your medium as well i get the walmart promix in the red cube or yellow cube i have an indoor grow journal moby dick grow that shows my soil mixture