 those seeds are going to set, drop, and then you're going to have an issue next year. So again, in your situation, if they're getting close to producing seed, go ahead and get those plants out of the garden, do a good thorough cleaning, and then next year, keep in mind, there's probably a lot of weed seed already in your soil, so you're going to have more next year. But if you keep on top of this for a few years, I think you're going to really reduce the number of weeds in your garden.