Coral Cactus Splitting After Heavy Rain: Likely Growth Quirk

The crested top of Euphorbia lactea ‘Cristata’ is inherently unstable. Splitting after prolonged rain is probably a continuation of its abnormal growth habit, not disease. Sudden temperature shifts can also cause tissue cracking.

Care Now

• Keep indoors in bright light.
• Water very sparingly all winter.
• No fertilizer until spring.
• Do not repot or disturb roots.

Expect more weird, wonderful crested growth.