Watering: Hibiscus plants prefer moist, well-drained soil. Check the plant daily and adjust watering based on the amount of sun and rain. Younger plants need less water, while older plants and those in full sun need more.
Sunlight: Hibiscus plants prefer full sun in northern locations and filtered sunlight in southern areas. Indoor hibiscus plants should be placed in bright, indirect light near a sunny window.
Temperature: Hibiscus plants are tropical plants that require warm temperatures to survive. Daytime temperatures should be 65–75°F (18–24°C) and no cooler than 55°F (13°C). Tropical hibiscus varieties are extremely sensitive to cold and will not tolerate winter in many locations.
Soil: Hibiscus plants prefer well-draining, fertile soil rich in organic matter.
Potting: Use a container that is the right size for the plant. A pot that is too large or too small will make it difficult to keep the plant properly watered. Repot every few years, preferably in March or April.
Pests: Monitor for pests such as aphids, mealy bugs, and Japanese beetles. Treat plants as needed with insecticidal soap or neem oil.
Pruning: Trim in late winter or early spring to encourage growth.
Blooming: Remove spent blooms to encourage more flowers.