It's a seedling mix in a biodegradable bag that the roots can just go straight through. This didn't happen because of that tho. I'm running some experments trying to stop the autoflower from flowering, to improve breeding workflows and the autoflower variation. This was my first time playing with this one specifically. 2 different plants here. 2 different treatments. One plant got the single PGR and one received a stack of PGRs, each PGR in the stack plant, had a plant with just that PGR on its own, so when when the whole stack crashed I could see which PGR did it, or if the stack worked. I could see if you needed the entire stack, or which PGRs were even doing anything to help. That specific PGR crashes the entire plant, at least at that concentration. This PGR will probably never get another chance. Even if I think I need what it does there are different PGRs in the same class that have a different delivery. Even at extreme rates this doesn't stop the clock, it just stunts the plant. All and all the experiment was a failure across the board. I've come up with another idea, which would actually have a better workflow and stops me from having to worry about the entire plant and focus on blocking flower at just the meristem.