Depends if it actually gets to 32 or less and for how long. Mine made it through a few nights of low 30s in October. Covering in plastic can help some.
^^^^^^ hahaha hahaha to late GIP used those last season!! Let's just say Heather was less than happy!!! Something along the lines of. Men what the heck is wrong with them !!! Who uses good sheets to cover their plants!! We're you raised in a barn?? Yeah honey pretty much!! Hahaha and no laughter followed! Snicker snicker