Aloe Saponaria Disease: Crowding and Soil-Borne Pathogen

Serious Condition

The hairy, rust/yellow growths at the plant base, spreading across 8+ plants in one bed section, indicate a soil-borne fungal/bacterial disease—not water-related (neighboring cactus is healthy).

Immediate Actions

• Transplant healthy aloes OFF the infected bed immediately.
• Crowding exacerbates spread—thin the population.
• Infected soil is likely contaminated long-term.
• Remove accessible diseased plants entirely.

Limitations

Aloe-specific pathology is outside general succulent expertise. For precise identification and treatment:

• Contact University of California Extension.
• Submit samples to a plant diagnostic lab.
• Consult Huntington Botanical Gardens specialists.

The bed's inaccessibility complicates management. Prioritize saving healthy stock in clean soil.