Frost Damaged Plants, Wilmington NC

Frost Damaged Plants

The time to clean up frost damaged plants arrived and many patient gardeners, correctly waited. Those who hurried to prune the damaged parts out relied on chance and luck to make the proper cuts. Maybe they were lucky, maybe not.

Frost damage in plants result from the liquid inside individual cells freezing and forming ice crystals. The crystals then rupture the tough cell wall. When the cell walls open the fluid inside will not be contained so  when the ice melts the fluid simply drain out causing the classic cooked spinach wilted look.

Freeze damage is progressive within plants. The softest tissues like leaves and tender new shoots are hurt first. Tougher stem tissue and buds down from the tips withstand more damage but are not immune if the temperatures are lower and the duration is longer. Limp, dry, and brown leaves damaged from frost stand to easily. Damage to stems and buds remains hidden for the most part.

Recognize how far down the stem damage has occurred takes a trained eye or luck. Tissue may appear undamaged but the damage hides latent until the spring flush of growth.

Wilmington NC Real Estate
Wilmington NC Real Estate

 

One important thing to remember: the more severe the damage the longer it takes for the older buds to emerge. Young, undamaged buds break and grow early. Buds lying in older parts of the plant need more warmth and other stimuli to began to grow.

When you find the exact point down the stem you can make the appropriate decision as to where to prune. Either cut about ½ inch above that bud if it’s going in the right direction or go further down and find another bud going in a better direction and cut it the same way.

This extra care and proper cutting helps the plant by directing its growth initially thus relieving later fix-up cuts that weaken a plant. Remember pruning is tough on plants. Its removes leaves that make energy for the plant and the plant must expend energy to heal the wound.

 

Posted by Nilesh Jethwa Wilmington, NC Real Estate

 

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With this in mind the wise gardener waits until the new growth starts in the spring to find the point along the branch where the damage progressed. Once the spring growth happens the site along the branch bare buds break out in new growth marks exactly where the damage stopped.