Tropical Hibiscus Indoors: Not for Beginners

Hibiscus needs a south window with direct sun, consistently moist soil, and high‑phosphorus fertilizer (e.g., 15‑30‑15) while pot‑bound. In late winter, prune back by two‑thirds, reduce water/fertilizer, and keep cool (mid‑50s°F) for six weeks to induce dormancy and better summer blooms. Watch for whiteflies, aphids, and spider mites.