Care Of Hardy Citrus Growing Citrus Trees In Cold Climates
Cold Climate Citrus Trees Citrons, lemons, and limes are the least cold hardy of the citrus trees and are killed or damaged when temps are in the high 20s. Sweet oranges and grapefruit are slightly more tolerant and can withstand temperatures in the mid 20’s before succumbing. Citrus trees that are cold tolerant down into the low 20s, such as tangerines and mandarins, are the most optimistic choice for planting cold climate citrus trees....