Frosty December Mornings in our Future?
It is not uncommon to have up to 20 frosty mornings in December. Be prepared to cover frost-tender plants throughout December. Plants such as Bougainvillea, Hibiscus, Natal Plum, Cape Honeysuckle, Citrus and the Red Bird of Paradise need frost protection. Use sheets, light blankets or burlap. Hardware stores actually sell large sheets of light, porous cloth for this purpose. Do not use plastic to cover your plants. Plastic traps the moisture under the tarp and damages the plant.
Leave frost protection on until late in the morning the next day. Some of the coldest temperatures are just after sunrise.
If frost gets to your plant, don’t remove the damaged parts. They might not look great for a couple of months, but those dead branches and leaves provide protection for the part of the plant that is still alive. You can prune frost damaged plants in the spring.