Reviving Sea Grapes After Freeze Damage

Understanding Freeze Damage on Sea Grapes

Sea grapes (Coccoloba uvifera) are iconic coastal trees, but they are highly sensitive to freezing temperatures. A hard freeze—like the one that hit St. Pete Beach in early February—can cause severe damage: leaves drop and are not replaced, new shoots emerge with hollow, blackened tips, and the canopy appears sparse and lifeless.

Assessing Whether Your Tree Is Still Alive

Before assuming the worst, check the cambium layer just beneath the bark. Use a knife or fingernail to scrape a small area on the main trunk. If you see green tissue, the tree is still viable. Brown, dry tissue indicates that section is dead.

Pruning for Recovery

If the cambium is green, cut back all dead crown material to the point where live wood begins. Make clean cuts just above a healthy bud or lateral branch. The tree will often resprout from the surviving lower trunk or root system. Be patient; new growth may take weeks to appear as temperatures warm.

Long-Term Care

Once new growth emerges, maintain consistent moisture (but avoid waterlogging) and apply a balanced, slow-release palm fertilizer three times per year. Protect the tree from future freezes by wrapping the trunk with frost cloth and using overhead irrigation or heat lamps during forecasted cold snaps.