Tomatoes Ugly Weeds Worms Owen Grumbling called to see if I thought there would be a frost. Yes, I think so. Owen wanted to know if he should cover his tender plants with blankets or if he should harvest what was left. For years I covered the tomatoes and harvested the rest. This year we covered the tomatoes for the first frost.
Frost begins by settling in low areas because cold air is heavier than warm air.
Our garden has higher ground on one side and lower ground on the other so cold air should flow across it to the lower first. What seems to happen, however, is that cold air comes off Mt. Washington and drifts uninterrupted across to our garden. The first frost this year was an unusually good indication that our theory is correct. The tops of plants were frosted while the lower leaves of even the basil were unaffected. Some years it will turn black from the first frost while all the other tender plants survive.