I just turn under stuff like that when I prep the garden bed, thinking a little extra fiber in my high clay soil is a good thing. Many seeds are also high in magnesium, I actually threw a few thousand okra seeds into a bed as a way to get rid of them in a productive way... then tramped over the sprouts when it was time to plant something else because okra won't survive well here until it stays warmer than it was at the time.
