Last year i insulated by bog by using snow. I made a gigantic mountain about eight feet high. Every two weeks it snowed, and the pile that was reduced to 5 feet was refueled. Then in spring the snow melted and i got some pretty S. leocophyllia tarnoc flowers (i realy wish i had taken pictures). Is snow really a good insulator or was i just lucky that my plants survived.
By the way im in zone 6, almost in zone 7