when to trim poker sticks in a cold climate?

Question

Last year I trimmed them late fall and half the plant froze, and not many poker sticks.

Answer 1

Red hot poker, Knifphofia may need mulching in very cold winters. Use leaves that have been run over by the lawn mower, straw, or wood mulch. The plant requires full sun to produce multiple flower spikes. The following link is to an article that discusses cutting back red hot pokers and winterizing them.