Posted 26 July 2011 - 02:17 PM
In zone 7b/8a, and with some protection (cover plus light bulb at base for heat), all spears pulled in spring 2011. However, it regrew and by mid summer, it looks healthy.
Coldest temp. 15f. No days with high temp lower than 32f.
Zone 8, Elev. 350'
Bone dry summers, wet winters, 2-3 days ea. winter in low teens.