Growing mint on aeroponic towers begins by soaking agricultural rock wool in reverse osmosis water at pH 5.5 for twenty minutes, helping bring the naturally alkaline substrate into the ideal range for seed germination. We then cover the seeds with a layer of vermiculite, a naturally occurring mineral that helps prevent them from shifting while providing an ideal air-to-water balance for germination. The quality of a crop is largely determined during the seedling stage. Proper early development leads to healthier plants and higher yields later on. #mint #farming #agriculture #gardening #seedlings