I'm trying to stay organic, now. I originally had attempted to use Miracle Grow liquid garden feed. It killed my lettuce and damaged all of my pepper plants bad enough to where I decided to start over. So, after discarding the dirt in my containers and planting new, my lettuce and peppers are growing. I would like to feed them something to help with yield and plant/fruit size. But, I sure don't want to fry them again with Miracle Grow like last time.
Any suggestions for something I could use that's readily available?