How do I stop my dog from digging in the flower pots?

I am attemting to beautify my backyard this spring by planting flowers and some herbs in some pots, but my dog will not stop "helping" me. She has dug up three so far. She spends alot of time just hanging out outside without me, so I'm looking for any creative ways anyone has found to deter their dogs, without actually having to be there to correct them. Ive considered making a spot specifically for her to dig in, but I dont think that that will work. Anyone got any ideas?