Hop rhizomes in the ground

For the second time, I will attempt to grow some hops.

I took a few improved steps this time around. First off, I didn't leave the rhizomes in my fridge unattended for 11 months. Second, I did some research beforehand and feel I've planted the rhizomes in the appropriate soil mixture. I have a compost pile which has turned out some great looking compost, so I was able to mix that in with some slow releasing fertilized soil.

Here's a picture of the 4 mounds (the Flickr picture is tagged for historical purposes with the hop types). I planted Fuggle, Willamette, Cascade and Golding.