How do I protect my cactus plants during the cold winter in Michigan?

Oh boy, I am originally from Michigan and never grew cactus there. My guess would be that they would need very heavy protection. Perhaps the rose cones that are made out of thick Styrofoam? Fill with soil/leaves mixture. If you’re areas of cactus our larger, perhaps You could use large Styrofoam coolers… Either way, I would make sure that their waited with bricks or stones on top. Best of luck!

Believe it or not, I just read they will do just fine outdoors! Take a look at this link:

https://garden.org/frogs/view/54633/

I would bring them indoors.

This may be surprising, but some cactus can survive winters in Michigan,for example yuccas.

Hello, if they are native plants they will be fine, prickly pear cacti can stand below freezing temperatures, I have some here in Alberta that grow naturally here.