Dear Cyndi, Buy yourself a hi-lo thermometer from the hardware store. You can set it every day and record the high and low temperatures right where the plants are. Remember the coldest time is in the early morning. If you watch the weather on TV or look in the paper whenever you can, it will be no time at all before you can guess what the weather will be and wrap your plants when needed. Lillian larmstro@slonet.org