sunburn on Crassula
Quick answer
If your Crassula has sunburn, the most likely cause is: Many succulent species produce protective pigments called anthocyanins in leaf margins and tips when exposed to increased light. This 'sun stress' coloration appears as red, pink, purple, or orange edges—particularly in Crassula, Aeonium, Echeveria, and Sedum varieties. Unlike damaging sunburn (which causes brown, crispy, bleached tissue with structural collapse), benign sun stress indicates healthy adaptation and enhanced photoprotection. The coloration is reversible if light decreases.
Start here:
- 1. Identify sun stress: Red/pink/purple leaf edges and tips that remain firm and turgid
- 2. Distinguish from sunburn: Brown, crispy, bleached, or translucent patches indicate damage
Why Crassula gets sunburn
Many succulent species produce protective pigments called anthocyanins in leaf margins and tips when exposed to increased light. This 'sun stress' coloration appears as red, pink, purple, or orange edges—particularly in Crassula, Aeonium, Echeveria, and Sedum varieties. Unlike damaging sunburn (which causes brown, crispy, bleached tissue with structural collapse), benign sun stress indicates healthy adaptation and enhanced photoprotection. The coloration is reversible if light decreases.
How to reverse sunburn on Crassula
- 1
Identify sun stress: Red/pink/purple leaf edges and tips that remain firm and turgid
- 2
Distinguish from sunburn: Brown, crispy, bleached, or translucent patches indicate damage
- 3
Monitor texture: Sun-stressed leaves feel firm; sunburned leaves become soft, wrinkled, or papery
- 4
Adjust gradually: If color is too intense or spreading inward, reduce light by 10-20%
- 5
Embrace healthy color: Vibrant stress colors indicate optimal light exposure and thriving plants
Keep sunburn off this Crassula
Learn species-specific color norms: Crassula 'Campfire' should turn entirely red in high light; Echeveria 'Black Prince' develops dark purple-black tones. Photograph plants at acquisition to establish baseline color. Expect vibrant coloration in properly acclimated specimens receiving 4-6+ hours direct sun.