Some plants need protection from freezing temperatures
![Some plants need protection from freezing temperatures](http://www.reviewjournal.com/sites/default/files/field/media/web1_copy_meyer-lemon--1-_7539194.jpg)
Q: It got to 30 degrees overnight in Boulder City. I’m worried about my little 6-foot lemon tree in a 5-gallon pot on the porch. I placed a queen-size bed sheet over the tree and hung a 100-watt incandescent lamp from a branch last night. I’m hoping that small amount of heat will raise the temperatures above freezing. Is this necessary?