Viewing post #3028326 by Albireo

NMoasis said: Albireo
Yes, they go dormant in freezing winter. Perfectly normal. I usually leave dead growth on until late winter/early spring, then trim off all but a couple inches or just above new emerging growth.

According to our database Miscanthus sinensis are at their lowest hardiness limit in zone 5. Because yours haven't been in the ground very long and might not have fully established roots, I'd recommend heavy mulch this winter.

Thanks for the reply. By heavy mulch would you recommend I cut them down low and fully cover them with mulch? Also, should I water them over the winter?