Sorry, '4acres. In your absence and as we wait :/, I went rambling off . . . without leaving the comfort of my south window.
We have now arrived at the time of year where my first interest of the day is the weather report. Mostly, I'm just trying to get the outdoor work done. There is little planted in the gardens; no transplants are out there yet. The soil is too cold for what little seed has been sprinkled in a row to germinate and come up. Mostly, I'm concerned about my comfort . . .
It is still a little unusual if it does not freeze. What I have been concerned about yesterday afternoon and today is the chance of rain. It is 40% with scattered showers after 11am. That's not especially worrisome even for a fair weather gardener, like me

. What is of more concern is the wind between 10 and 14 mph, with gusts as high as 20 mph. They'll get that wind wrong half the time and it will be more windy even by their own measurements and especially in my open, larger veggie garden.
What's a little interesting is the
snow that's being shown on the radar map just west of here. It seems like a tiny storm and the temperature never fell much below the current 39F.
I'm talking thru my hat but plants are damaged by frost in a couple of ways. The freezing of the tissue causes it to break down but plants also may just become dehydrated as fluid is pulled out of them. Good soil moisture will not only keep the plant hydrated as best as possible but it also creates water vapor near the soil surface where the plants are. That may be a bit warmer than a few feet higher.
Sprinklers during the time of freezing create that same water vapor while washing the plants with water. Ice may form and that creates another risk - weight. A self-manufactured ice storm can break tree branches and generally flatten things. Still, it is sometimes worth the risk. Washing frost off . . . I think that's basically bathing the plants and, if done soon enuf, can be of help. The timing, perhaps related to the thawing but probably relative to how long they have been experiencing freezing temperature, is important.
I can share that picture of my frost covered snapdragons from last year. I'd run the sprinklers from 3am that morning. The ice-encrusted little plants were like stalagmites

. I think all of them survived but I did lose a few asters. Broccoli, cabbage and kale were fine.
Steve