Overwintering Hibiscus Indoors Near a Chlorinated Pool

Margarett brought her potted hibiscus inside by an indoor pool for winter. Conditions are ideal: 28–29 °C (83–85 °F), 75% humidity, and great light from windows and fluorescents. Her concern: will chlorine fumes harm the plant?

Chlorine Fumes: Low Risk

Chlorine fumes at typical indoor pool levels are unlikely to damage hibiscus. The plant should thrive in the warm, humid, bright environment — essentially a greenhouse.

Real Concerns: Splash and Pests

• Pool water splash: Keep the plant far enough back so splashing chlorinated water doesn't hit foliage or soil. Direct contact can cause leaf burn or root issues over time.
• Pests love these conditions too: Spider mites, scale, and mealybugs flourish in warm, humid, still air. Inspect weekly, especially leaf undersides. Treat early with insecticidal soap or neem oil if needed.

General Care

Water when the top few cm of soil are dry. Fertilize lightly monthly with a balanced formula. Prune lightly to maintain shape. The hibiscus should bloom well indoors with this much light and warmth.

Enjoy your tropical corner — just watch for hitchhiking pests!