I am a newbie in the gardening world. Four summer's ago I tried container gardening with our first born and like I said back then, I didn't grow much, I just killed them really slowly. I've learned from my mistakes that plants need to be fed multiple times during the growing season. Last year I added fertilizer every couple of weeks.
This year I plan to fertilize my straw bale garden every week to try to avoid the blossom end rot (sign of calcium deficiency by the way - add bone meal) and to encourage my plants to GROW GROW GROW. They are all natural fertilizers and I don't use very much of them at a time. Not a full meal...just a snack....sprinkled carefully around the base of the plant like this: