11 1 1 Gardening: What kind of plant is this??? It's growing like wildfire in my yard and i've never seen it before. Commented on May 01, 2012 I would go with milk weed as well I was so allergic to it as a child and it looks just like ...» it! It will get large green seed pods later in the summer if it is. They will erupt and seeds will blow like beautiful large snow flakes!