PowWow White Coneflower Echinacea purpurea

One of my favorite blooms in the garden. Not a true white, but a slightly buttery yellow-white, and the blooms stay for a long time, without browning. I planted them in full sun in rather poor rocky soil, with clay underneath and for some reason, they don't seem to mind. I wouldn't say they are covered in pollinators, but there are a few visitors. Slightly sweet smelling. I love how the petals point downwards. Not invasive at all, in fact, I wish it was a little more vigorous so I could put in more area's of the garden. My ONLY problem, and it's a big one, is a fat groundhog who loves to eat it, and all my coneflowers, right to the dirt level. I've sprayed it with bitter, but it needs reapplying as it grows. I may plant a hardy geranium around it, hoping it's spicy leaves will deter it further. I'm in a humid zone 5.