Cool Weather Lettuce: Consider Planting Near a Wall

 I planted some lettuce early this year--it's a cool weather crop--even though there was a hard frost and the threat of more on the way. I planted it close to a foundation wall, however. The sun warms the masonry and continues to radiate, creating a mini-climate. Of course, the little germ-like baby lettuce could still get wiped out but so far our scheme seems to be working.