Something Green

I don't have much time for the yard, but snuck in some time on Saturday. And discovered this cute little green sprout poking out of the mulch in my new planter box. Someone suggested it is celery. I'm pretty sure I didn't plant celery, but I did put in one rhubarb. So maybe it is rhubarb.
I bought a rhbarb rhizome (I think that's what it was) on a whim - don't you love how that happens? You go into Home Supply Depot and leave with all these fabulous things you don't know how to use/grow/eat. Well if it is rhubarb and it survives all the way up to ripeness (oops, something else to figure out), then we'll tackle what to do with it.