Our first time gardening has so far been very successful. Our tomato plants have nearly reached my shoulder! The cilantro is thriving; the basil is the size of a bush. I'm fine harvesting the herbs when needed for cooking and have been systematically pinching off all the herbs' flowers. But have no idea when to start cutting off the veggies. I've attached a pic of our green beans. We have 3 bean plants and one of them seems to have grown beans! When do we start harvesting? I'm so excited, even if it yields 3 beans to start with.