Sounds like you're killiing them will all the slow-release ferts.....that's just a guess because you could also have some ph issues going. I'd try and transplant them to a better soil asap.
Weedhound Reviewed by Weedhound on . leaves are dying fast ok so the bottom leaves are shrivelling up with yellow/brown spots all over them and working its way up the leaf sets of the plants. The plants also seem to be growing very slowly. Just today an entire second leaf set went from perfect green to yellow/brown and burnt looking. I just flushed them about 4 days ago and it didnt seem to help. So I sprayed some worm casting liquid onto the soil figuring it was some kind of nute difficiency, but that hasnt helped either. I think im screwed. Im Rating: 5