Frost crack on the stem of a Autumn Blaze Maple. This plant is facing directly south.

Description

Frost cracking is a long, vertical split in the bark caused by a weakness in the bark. During late winter and spring, water in the stem freezes and contracts, which leads to a split in the bark. Over time, the crack can enlarge. Although frost cracks are not typically fatal to a tree, they can create entry points for disease organisms and canker pathogens. Frost ribs will develop as frost cracks heal and recur.

causes of frost crack
1.	Temperature fluctuations	Warm days and cold nights cause water in the wood and bark to expand and contract.
2.	Reflected light	Snow cover can exacerbate frost crack.
3.	Tree age	Young trees and trees with thin bark are more likely to be affected.
4.	Tree orientation	Trees that face south or southwest are more likely to be affected.

Plant Type

Botany 101

Family: Botany 101

Scientific Name: plant problems frost cracking

Common Name: frost cracking

causes of frost crack