There was a serious frost warning last night but the temperature was 36 degrees when we woke. Not even the basil was nipped.However, it seems that it is only prudent to give the houseplants that have been vacationing on the piazza an insnpection for disease or pests, a watering and a good shower. This task done they are certified safe and I bring them back into the house.The census this year is a giant jade plant, a jasmine,…