Overwintering Desert Rose (Adenium) in Cold Climates

Cold Sensitivity and Indoor Care

Desert rose (Adenium obesum) thrives in full sun and heat but cannot tolerate freezing temperatures. If nighttime lows approach 40°F, bring the plant indoors immediately.

Indoor Requirements

• Light: Place in a south-facing window with at least 6 hours of direct sun.
• Water: Water sparingly—only when the caudex (swollen trunk) feels slightly soft. Overwatering causes yellowing and leaf drop.
• Humidity: Low humidity is fine; misting is unnecessary and can promote fungal issues.
• Pests: Watch for spider mites (fine webbing on leaf undersides). Treat with insecticidal soap or neem oil at first sign.

Spring Transition

When nights consistently stay above 55°F, gradually reintroduce the plant to outdoor conditions over 7–10 days (hardening off). Resume regular watering and fertilizing with a balanced formula.

With minimal winter care, desert rose will bounce back vigorously in spring, often flowering more profusely after a cool, dry rest period.