It's compost bin growing season. Along with all the tomatoes popping up I found 3 of these little plants. The soil we first put in this bin was straight from a bag from the local farm. Other than that we have added tons of veggie and fruit scraps. I am trying to figure out if this is a weed that somehow made it into the bin or if it is actually something worth keeping. I'm about to pull all the tomato seedlings so I can turn the bin, but I don't want to waste time transplanting these if they just need to go. Ideas?