I saw an older topic in here from 2006 and would have replied but it was locked so I thought I would start my own.
Turns out, I'm raising sunflowers by accident.
We recently installed a bird feeder, filled it with feed and really enjoyed watching the birds (and squirrel) visit our yard. During this time my wife was converting a piece of ground near our front window into a rock garden. Things got hectic, the garden never got finished and soon got overgrown. That is when we noticed some really tall plants that just had to be sunflowers. A few weeks later we were positive. (I've since cut down everything but the sunflowers)
Only something odd is going on with two of them.
One is a freaky mutant. All of the leaves are scalloped, like someone ran over every leave with those craft scissors that make zig zag cuts. Also - in addition to the usual big head, it is covered with small nodules that look like they too will soon become flowers.
Another looks like all of the other plants, only it has a few more heads (not as many) as it's freaky brother.
The rest look like normal happy plants.
Now I've read that this is likely a soil-condition thing. Which I'm not sure about as they are all within the same 2 square feet of soil.
Anyway - just wondering if there is more interesting information out about my scalloped freak plant - or if people would like seeds (yes I know there is no guarantee it would continue that characteristic) because if people would like to try and grow a plant like mine I'd love to help.
I'll try to get pictures up later...