When I checked my email I saw that my e-notes had arrived from Garden Gate and this tip was there. They have some really great tips (if anyone doesn't know). Lately I'm so slow getting to email sometimes.
Fortunately, I don't have to worry about seeds sprouting in my backyard. It's a little bit of everything since we back up to woods. And birds are always happy to deposit more here. But in the middle of roses. Ack.
The health food store might very well have them. Mine does.