Suzanne’s preparations for her year of eating local suffered a setback this week as the lowest temperatures in 35 years descended on Dawson, bringing three days of frost . Microclimates abound in the Klondike, so depending on their location the severity of damage to gardens and farms varied, with the town only mildly affected, while outlying areas saw temperatures as low as -4.7°C.
Where frost did occur, even some plants that were covered suffered — especially brassicas (plants like cauliflower and broccoli) and beans. Many of those who suffered losses were veteran growers, who had taken precautions to try to mitigate the frost damage.
Klondike Valley Nursery in Rock Creek, where they are adapting fruit tress to the north, was especially hard hit. They lost their haskap berry crop as well as their early apples, even those that were in shelters with kerosene heaters. Only the apple trees that were in greenhouses heated with wood stoves made it through.
Lucy’s Plants and Vegetables in Henderson Corner has a sprinkler system that is thermostat controlled and turns on automatically when the temperature hits zero. The sprinkler system and the row covers saved the day. There was still some frost damage to early peas and early potatoes, but hopefully they will recover. The rhubarb was frozen hard, but there’s still time in the season for them to bring out new shoots.
Kokopellie Farms in Sunnydale irrigated their plants and put them under row cover but still suffered frost damage to some of their cauliflower, broccoli, lettuce and early potatoes. Fortunately for Suzanne’s hopes of getting some grains, their winter rye is doing well.
Growers have always been at the mercy of the weather, but occurrences like this one underscore the challenges of gardening and farming in the north. Northern growers have developed techniques for weathering frost, including irrigating well before and during the frost, covering crops, and moving what one can into heated shelters and greenhouses.
Do you have other ways of dealing with frost or some lessons to share with us? Let us know.