For years I had the same "problem" with the birdseed taking root. I used to
weed-eat, or mow the little rascal
plants down without a shred or remorse everytime they poked their little heads up out of the soil...until 2 summers ago.
My youngest son was responsible for my change of heart. He was 6 at the time, and new at gardening (He's a pro now...hahaha). He had just begun his self-assigned duty of filling the birdfeeders every other day (We have ALOT of birds!!), and was very serious about his task. I had not been able to work in the yard as much as I liked for a couple of weeks due to my work schedule. When I finally was able to get out there and get busy, one of my first chores was to rip those "
weeds" out from under our birdfeeders. Upon inspection I noticed that there were several sunflowers
growing quite well already, and a multitude of other
plants as well. The unusual thing was that someone (No points for guessing who!) had lovingly built a circle of rocks from our driveway around the "mess". The look of pride on my little boys face when he saw me discover his "secret garden" made me remember that beauty is in the eye of the beholder.
Since that day we make a special chore of preparing the soil underneath each and every birdfeeder so that he can grow his very own "bird garden", and I now see the beauty that my child dicovered all on his own, and was kind enough to share with me.
P.S. I read somewhere that if you micro-wave your birdseed for about 3 minutes prior to filling your feeders that it keeps them from sprouting, but doesn't change the nutritional value of the
seeds....good luck!