[header] How to protect plants from the cold [title] Bring potted plants indoors. [step] The first and easiest solution to the cold is to simply remove your plants from the low temperatures. If you have any potted plants or hanging baskets outdoors, bring them inside your home. 
Even a move to the garage or a sun room will be beneficial, as this will still increase the temperature by at least + 10ºf (+ 5.5ºc). If you're able to, the best solution is to place your plants around the interior of your home as decoration.