Answer: Based on your description, I am not certain exactly what is happening with your cypress trees. However, they are not considered hardy in areas colder than zone 7 (where winter low temperatures average as low as 0 to 10 degrees), so it is possible they are suffering some cold damage especially since newly planted plants are more susceptible to cold dmage than more established plants would be. You might want to consult with your county extension (325-2788) to see if they have any suggestions or can identify any other possible problems the trees may be experiencing (such as over or under watering or over or underfertilizing or a pH incompatibility or poor drainage or insect damage) that could be remedied through cultural practices. I'm sorry about your trees.
Q&A Library Searching Tips