Hi, I'm Stan De Freitas, Mr. Green Thumb, for On Gardening. One of the problems we have with some of our plants was cool weather. If you've got too much cold, well your plant can die, especially if it's one of the sensitive plants. It's the reason I always recommend that you check your gardening books, and try to find out how cold hardy is your particular plant. Some plants take cold great, other plants don't. I'm always amazed; people cover over their Roses; they're pretty cold hardy. They'll forget to cover over their favorite Philodendron, or their favorite Rose, and they may have a problem, depending on where you're at. So remember, of course when you have something like this, this is called N-SULATE, you're going to cover this over your plant, try to cover all the way to the ground. Remember, when the sun heats the ground it helps to make radiant energy, and that energy is given back off during the night. If you just apply this over the top of a plant like a bonnet, it's not really going to hold that energy very well. Try to cover it as you see in the picture here, where you're covering it all the way to the ground. Put some stones, put some rocks, put something on there to help Hi, I'm Stan De Freitas, Mr. Green Thumb, for On Gardening.