Clivia is a beloved flowering plant that thrives in warmth, joy, and even cold. During winter, it requires special care and attention in four key areas to ensure its health and beauty.
First, proper fertilization and watering are essential. From autumn until the winter solstice, apply solid fertilizer to your Clivia, focusing on phosphate and potassium rather than nitrogen. Eggshell powder and cooked fish bones make excellent sources of phosphate, while wood ash and soot provide good potassium. A balanced mix of nitrogen, phosphorus, and potassium can help promote new growth. However, be careful not to over-fertilize—avoid using raw or uncomposted manure, as it can burn the roots or cause rot. If you notice yellowing roots or new leaves turning pale and thin, it may indicate over-fertilization. On the other hand, if new leaves are narrow and light in color, it might mean the plant is lacking nutrients.
Watering should be done carefully. The soil should remain moist but not waterlogged. Water thoroughly each time, especially during blooming. You can combine watering with liquid fertilizers like fermented soybean cake water, fish emulsion, or horse manure tea every 20 days. When temperatures drop, reduce watering to prevent root rot. At the same time, avoid letting the soil dry out completely, as this can also harm the plant.
Second, temperature control is crucial. Clivia prefers temperatures between 15°C and 20°C in winter, and it should not drop below 10°C. After the flower stem emerges, maintain around 18°C. A daily temperature difference of about 10°C helps the plant bloom properly. If nighttime temperatures fall below 10°C, bring the plant indoors. In colder rooms, cover the pot surface with a thin layer of charcoal for insulation and place it in a sunny, warm spot. If temperatures are extremely low, you can cover the pot with a plastic bag to raise the temperature, but ensure it doesn’t exceed 25°C. If it does, ventilate appropriately.
Third, adjust the lighting conditions. Although Clivia prefers semi-shady environments, it benefits from as much sunlight as possible during winter. Strong light shortens the flowering period, while weaker light can extend it. Clivia grows best at 18-20°C, stops growing below 5°C, and survives without damage above 0°C. Once moved indoors, the light becomes limited, so manually rotate the pot. Place it in a sunny indoor spot during the day to maintain its vibrant color. Before flowering, use a fluorescent lamp at night for additional light. Since Clivia has opposite leaves, prolonged exposure to one direction can cause uneven growth, affecting its appearance. Rotate the pot every 10 days, positioning the leaves either parallel or perpendicular to the window. The latter method produces better results.
Lastly, to extend the flowering period, you can place the plant in a dark area when it’s about to bloom, reduce watering, and keep the temperature between 8°C and 12°C. This technique can prolong the bloom by 10 to 20 days. With these care tips, your Clivia will thrive and display its beautiful flowers throughout the winter months.
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