When temperatures are expected to drop into the mid 20's for more than 2 hours, cover citrus. Some are able to supply a lamp to the trunk for additional warmth. Most citrus fruit will not freeze unless temperatures drop into the mid 20s or lower for at least 2 hours. Wait to prune any frost damage until all freezing temperatures are over for the season. Pruning too early will expose living tissue to more frost damage, whereas the already frost damaged areas provide some protection.
Mow winter lawns only when dry to prevent spread of disease.
This may be due to short days, winter weather, drought, or overwatering. Normal growth resumes in the spring, so don't be eager to prune brown area. Fertilize winter lawns monthly, using a nitrate fertilizer. Nitrate fertilizers are the most effective greening agents for grass in cooler months. Fertilize the first time after 3-4 mowings.