Frost-Damaged Rosemary: Prune, Sun, and Hope

Rosemary Is Frost-Sensitive

Below 32°F for more than a couple hours usually kills it. But if inner stems are still green and flexible, there’s a chance.

Rescue Attempt

1. Prune off all brown/blackened growth back to live (green) wood.
2. Maximum sun (south window or outdoors if >45°F).
3. Sandy, fast-draining soil.
4. Water only when bone dry. Rosemary hates wet feet.

Outcome

Time will tell. New growth from base = survival. No growth by spring = loss.