what i think you should do is get some peat moss and just mix half and half. thats the safest way cause i never tried to use just perlite. and as for watering i say you stick either your pinky finger or ever a toothpick about 2 inches down and if its completely dry then go head and water. Also when u water try not to just dump water in there grab like a ketchup bottle or something that squirts slowly so you have more control over what your doing.
soobie05 Reviewed by soobie05 on . possible to overwater 100% perlite growing medium? I planted my germinated seeds(roots sticking out about 1/2inch) 5 days ago in my drip hydro system. I'm using a 100% perlite growing medium and wanted to know if its possible to over water my seedlings in this? Also, what should the flow rate be and does placement of the hose matter inside of the growing medium? I've attached some pictures, hope it helps. I think I've overwatered them and have shut the pump off and will probably keep it off for about 30-40min and then put it on a slow Rating: 5