Larry, when you mentioned seeds, it jogged my memory about our petunias. We've lived in this house for 33 years now, and for about the first 20 I did not plant any flowers. Then when the flower bug bit me, I started digging in the grass in front of our house. Petunias have come up on every side of the house and they are everywhere now! I had no idea seeds would lie dormant that long... and now I realize that 20 years is really not that long after all!