Answer Feb 26???b. Less toxic to humans

???Winter mulch is put on a perennial garden:
a. to keep the plants warm.
b. to reduce frost heaving.
c. to prevent fungal growth.

Day 0 with light snow Winds 5km/h P.O.P.60%

Night -8 with light flurries Winds 10km/h P.O.P.40%