Yarrow: A Staunch Plant

I said I was going to take a walk around my garden last weekend, and I did. I also walked around what passes for a yard in these parts and noticed some plants starting to green up. I hope they don't get too eager: we'll probably still have a cold snap or two before Spring is finally sprung!

One of the plants that's starting to wake up is Yarrow. A few years ago, I was at the garden center and chuckled when I saw Yarrow plants for $6. I want to know how I can get in on that...