We had some frosty nights this week that kept us up all night. Sunday night and Monday night were situations that fruit growers dread. When the fruit trees are in full bloom, they are the most susceptible to cold injury. And that was exactly the scenario early this week.
Temperatures fell into the upper twenties both nights and endangered the delicate flower parts that develop into the fruits we grow. We spent both nights doing all we could to keep the orchards warmer. A degree or two can make all the difference in situations like this. So as the thermometer headed toward the freezing mark, we began fighting off the cold. In our sweet cherry orchards we set up over a dozen wood fueled fires to add heat to the mix. We started our frost fan shortly before midnight each night and it ran for about 8 hours both times. The goal of the fan is twofold. It moved the heat from the fires throughout the orchard. But even without the fires, fans can pull warmer air aloft down and distribute it around its circumference. The fan we have is 23 feet high, so it reaches up for the warmer air. Where does the warmer air come from? During the day the sun warms the soil. As the sun goes down, the colder air aloft settles down toward the ground, and the soil begins to give up its warmth. That warmer air rises and forms a layer on top of the cold settling air. That is the layer we try to mix into the colder surface air. It doesn’t always work. If there is wind, the layers don’t form and all the air is the same temperature.
Another thing we did to stave off the cold was irrigate. We ran our irrigation system for 2 days prior to the frosty nights, and all night both nights. Since water comes out of the ground at 52 degrees, there is some warmth to be given off as we irrigate. Wet soil can also give off its heat more readily than dry soil, so we try to gain any advantage we can in this way too.
We also pray. A lot. Knowing that whatever happens we will be OK in God’s hands. And knowing that our feeble attempts to alter the weather are no match for His power.
So everybody wants to know, “How did you come through the frost? Did you have a lot of damage?” Well, It is a little early to tell how everything did. It looks as though many of the fruitlets survived. In fact, we are optimistic that we will have a crop at this point. What we don’t know is what the fruits will look like when they are grown. Some scarring and other damage may have occurred, but time will tell. But we feel blessed that we seem to have come through the cold in good shape!
And after a stretch of 60 hours on 5 hours of sleep, Tuesday night had no threat of frost, and a high chance of rest! We took full advantage of that!
Have a fruitful week!