This has probably been done before, however I looked back through 6 pages of threads and didn't find it. The 3-4 sister guild of Corn, Bean, Pumpkin/Squash/Melon, Quinoa/Amaranth is well known and apparenty quite easy to do depending on climate. I'm yet to try it though I would be interested in anyone's experiences who have tried it (especially if they tried the Quinoa with it). I'm also thinking that Kumara could potentially substitue for the curcubit ground cover role. Anyway, to the point. Given this guild fits together so neatly in physical, productivity and nutritional terms are there any other vegetable guilds that anyone is aware of that are as effective? I am particularly interested in a tomato/chillie guild. I have read that carrots and allums are supposed to do well with tomatoes though I would have to wonder how growing so close to a hungry tomato would effect the crop size of root and bulb vegetables. It also doesn't allow for the green mulch role that pumpkin plays in the 3 sisters guild. Perhaps a curcubit or melon would work in with tomatoes? I suppose what I'm after is the ideal productive ground cover to grow with nightshades. Kumara is a special plant because the young leaves are so versatile and tasty and the tubers need no explanation. Would be good to get a nitrogen fixer into the guild too.