I usually protect the bed that has my cactus, agave, and summer rainfall african bulbs with a little bit of mulch and a large tarp to keep the soil dry all winter. I'd like to avoid the mulch since its a mess to clean up in the spring. I ran across a roll of Reflectix insulation at a local lumber store that looks like it could be a good solution. Its about 3/8" thick aluminized bubble plastic. Has anyone used this material to protect a bed and if so is it sufficiently UV resistant to last a few winters? Thanks! Phil Andrews Southern Michigan, Zone 5ish