We have flower box's in the apartments we live in here. I never used mine. A former resident, for reasons I have never figured out, planted some strange plants in my box before she got kicked out and left for parts unknown. I decided recently to use my flower box, and noticed the weird plants she placed in there last summer, are now growing, something they've never done. I don't want to just rip them out and kill them.. they are kinda pretty. But I kinda need a ID so I know if they will harm the new stuff I've put in the box. Or if I need to remove some..there are quiet a few in the box! any help would be appreciated. I've been trying, but no luck at all.