Hello unyquity there is a differance between growing and sprouting.Growing is done to maximize nutrient density and yeild.The most nutritous grass is grown as close to the jointing stage as possible.In a growing medium,or in the soil itself.Tray grown grass hits the jointing stage faster than soil grown grass.However tray grown grass is limited by the tray,root binding.Using a growing medium is labor intensive,but well worth it.It truly is where sprouting meets gardening,the best of both worlds.Maximizing nutrient density will intensify the taste of the grass!