Some Really Frozen Grass

At the tail end of our spell of hard freezes, the grass in our yard turned a very unusual yet lovely burnt sienna color.

I can't remember ever seeing grass quite this color before. I'm glad I took a picture of it when I did, because later we had rain and today the grass is a completely different color–more of a nondescript beige.

I wonder how long it will be before the grass is green again?