Louisiana Iris Volunteer

 We were please to see some Louisiana Iris blooms in the frog pond where we never planted them.  So how did they get from the large pond to the frog pond.  I'm not sure how they propagate but according to the web, you can split the rhizome or grow from seed.  My guess is the seed got to the frog pond and the plants developed from the seed.  We didn't even have to help it along - it was all Mother Nature.