There's a fellow out in California, Ray Marley I think, and he says star thistle is his favorite honey. I am looking forward to Cotton blooms in about six weeks. I hope, I hope………. There should be some watermelon blooms a bit earlier than that. My bees gained some honey on Watermelon last year, although most beekeepers do not think it is very productive. I'm in a similar situation as you, in that I have five really good hives that just need some forage.