Winter Care for Rubrum
I live in Michigan and would like to know what I need to do for my Rubrum to prepare for winter. Does it need to be cut down?? If so to what height. Does it need to be covered???
Certified GKH Gardening Expert
In your area, Rubrum is an annual. You can try digging it up and wintering it in the house. But if you leave it outside over winter, it will die.