Hibiscus plants are tropical beauties that love sun, warmth, and moisture—but figuring out exactly how often to water them can be tricky. Water too much, and you risk root rot; too little, and the blooms may drop. This month-by-month care calendar will help you keep your hibiscus perfectly hydrated all year long, whether it’s growing indoors, in the garden, or in a pot.

Factors That Affect Watering Frequency

• Location: Outdoor hibiscus needs more water than indoor plants.
• Climate: Hot, dry weather increases water needs; cooler months reduce them.
• Container vs. Ground: Potted hibiscus dries out faster than in-ground plants.
• Soil type: Well-draining soil is essential—heavy or soggy soil increases the risk of overwatering.

Hibiscus Watering Care Calendar

March–May (Spring)

• Water 2–3 times per week as new growth begins.
• Check soil moisture regularly and water when the top 1 inch feels dry.

June–August (Summer)

• Water daily or every other day in hot climates, especially for potted hibiscus.
• Mulch around in-ground plants to retain moisture.
• Morning watering is best to reduce evaporation and avoid fungal issues.

September–October (Fall)

• Gradually reduce watering as temperatures drop.
• Outdoor hibiscus may only need watering every 3–5 days depending on weather.

❄️ November–February (Winter)

• Indoor hibiscus needs minimal water—about once every 10–14 days.
• Allow the top 2 inches of soil to dry before watering.
• For overwintered plants in dormancy, water just enough to prevent complete drying.

Signs of Overwatering

• Yellowing leaves that feel soft
• Wilting even when soil is moist
• Mold or fungus on the soil surface
• Black, mushy roots (if removed from pot)

Signs of Underwatering

• Drooping or dry, crispy leaves
• Bud drop or failure to bloom
• Slow or stunted growth

Bonus Tip: Use the “Lift Test” for Potted Hibiscus

Lift the pot to feel its weight—light means it likely needs water, heavy means it’s still moist. This simple trick helps avoid both extremes.

Proper watering is one of the most important parts of hibiscus care. By adjusting your schedule seasonally and paying attention to your plant’s signals, you can keep your hibiscus healthy, blooming, and beautiful all year long.

Follow the care calendar, water wisely—and enjoy vibrant hibiscus flowers no matter the season!