Somebody has given you incorrect information. It's unfair to generalize what american people do especially if you've never been here. Lemon is an amazing ingredient that can elevate a lot of dishes, but not all. And quite the opposite of what you say is true. Greeks put lemon on everything, not americans. KY I've always gotten my blossoms from the farmer's market, next time I'll ask them if they're locally produced. I've never seen them in supermarkets though alas I don't cook with them often in the states. In greece my family has lots of courgettes in their garden and we eat them all summer long. I meant to experiment with this recipe I saw on Jamie at Home but never got around to it. Time to head to the farmer's market and see if they have some still available.