frost damage on Aeonium
Quick answer
If your Aeonium has frost damage, the most likely cause is: Cold air is heavier than warm and flows downhill to pool in low-lying garden areas. When temperatures drop a few degrees below freezing (32°F), moisture in aeonium tissues solidifies, expands, and bursts cell walls — causing permanent damage or death. A 2-3°F difference between a low spot and a slope can mean survival versus loss.
Start here:
- 1. Identify frost pockets in your garden where ice crystals linger longest after sunrise — avoid planting tender aeoniums in these spots
- 2. Plant aeoniums near south-facing walls, boulders, or structures that absorb and re-radiate heat during cold nights
Why Aeonium gets frost damage
Cold air is heavier than warm and flows downhill to pool in low-lying garden areas. When temperatures drop a few degrees below freezing (32°F), moisture in aeonium tissues solidifies, expands, and bursts cell walls — causing permanent damage or death. A 2-3°F difference between a low spot and a slope can mean survival versus loss.
How to reverse frost damage on Aeonium
- 1
Identify frost pockets in your garden where ice crystals linger longest after sunrise — avoid planting tender aeoniums in these spots
- 2
Plant aeoniums near south-facing walls, boulders, or structures that absorb and re-radiate heat during cold nights
- 3
Use windbreaks to prevent still cold air from pooling, but ensure some airflow to discourage fungal disease
- 4
When temperatures near 32°F are forecast, cover aeoniums with fabric or move container plants to sheltered microclimates
Keep frost damage off this Aeonium
Plant aeoniums on south-facing slopes or near heat-radiating boulders and walls. Cover when frost is predicted. Good air circulation prevents cold air from settling.