I've planted a four hop plants this year. My soil is mostly clay so I had to cut it with a lot of Miracle Grow Garden Soil to add nutrient as well as soften it up. I plated two Willamette and two Cascade rhizomes. Up until a few days ago I thought the Cascades were dead as they hadn't broke ground at all. But I've got a few sprouts on both of them now and the Willamette are ~2" tall and growing good.