Chill Hours

We've had frost warnings for several nights recently.  That's a good thing for gardeners with fruit trees who need the chill hours for the development of the fruit, but not such a good thing for gardeners who have lettuces growing; they like cool weather, but not frost.  Because lettuce has such a high water content, the cells will be damaged if the water in them freezes.

So the garden for the past few nights has resembled a tent city, but at least the tender lettuces were protected.