Aegopodium podagraria

I've had this in a few gardens. Lovely so long as you keep an eye on how far it's spreading!

On the other side of the hosta is an Heuchera Palace Purple...and every summer I do a major rip-out of the aego...it loves it...doesn't seem to set it back...infact it looks better, grows taller and seems less prone to spreading!! haha I keep it in check around the hosta and heuchera and the tree seems to love it's spot with the ground cover around it's trunk.