Of all my grasses, I am sad to say I cannot keep one of the best - Pennisetum Setaceum`Rubrum`. I know it needs protection over winter, but having wrapped it up really well and stored it in the garage, it still didn't survive - that's the second one! Has anyone out there got a surefire way of making sure it doesn't capitulate to the ravages of winter or have I got to treat it as an annual?
