Lemon Can Get By On Few Hours of Sun During Winter But Not Other Times of Year

Q. I have a Meyers lemon that is currently potted.  Now that I have lived through a winter here I have paid better attention to my sun. There are two spots along the back wall that get maybe 3-4 hours of direct sunlight at the shortest time of year.  Do you think it would survive being planted against a warm cinder block wall with only that much sun? 

Gloria Caruso's immature
Eureka lemon in Las Vegas

A. Meyer lemon will freeze back in our harshest microclimates in the Valley. On the other hand some of the more tender citrus, such as the limes, can handle our winters just fine if they are placed in the right microclimate.

The number of hours of sunlight in the winter is probably not as important as the number of hours for the rest of the year. Certainly four hours of sunlight is far too short for nearly all fruit producing and flowering plants if this light is during the spring, summer and fall months. But if this plant receives eight or more hours during these non winter months, when temperatures are at least warm, it might do just fine.

To protect from freezing temperatures in the winter it is best that it's placed near a very warm winter wall with very little exposure to wind. Some people wrap or drape them with materials and other use heat sources such as Christmas tree lights along with draping.