It's Greenthread (Thelesperma filifolium). I've got clumps of a type of greenthread in my flower garden. I love the way it mixes with other flowers, and it's a perennial for me.

Edit: I just remembered that I had an old thread on here about this very plant. :D

Here is a link that might be useful: Another greenthread post

This post was edited by Perylene on Wed, May 28, 14 at 0:04

I loved this plant. It just showed up.. didn't come back this year though.