Water Gardening: Where Do They Come From?, 0 by SabraKhan

SabraKhan wrote:
Every year I put out several tubs outside to grow a few water lilies that I overwinter (just the rhisomes) in the basement. About this time in late summer I always start to see a frog or two in the tubs. Since I use new tubs every year and I'm a good half mile from any water source, where do these frogs come from to decide to make my small tubs their home and why so late in the season to show up anyway?