I don't know that one all my tags - hubby tossed. He was " helping "
Edited to say it is a cshion spurge and here in 7b NC..it dies way back and I cut it off almost to the ground...it gets the size you see in a matter of weeks and by summers end , it is in the water. Good thing no fish --- toxic...
Closeup of flower
And later summer... greens up ( both sides of flagstone walk)
