I have a customer who has a small flower bed under her kitchen window. Each spring she plants some annual flowers in it. Two years ago, she sprinkled a thin layer of cypress muclh around the flowers. This was the first time she had done this. This particular year, she ants her kitchen so bad that she had to call an exterminator. The next year, she planted flowers, but never got around to mulching around them. Not a single aunt in the kitchen. This spring, planted flowers and spread a thin layer of cypress mulch around them, and once again had a problem with ants in the kitchen. This has led her to think that her aunt problem was caused by the mulch around the flowers. I say it purely a coincidence. Opinions please.