Kalanchoe blossfeldiana, also known as Flaming Katy or florist Kalanchoe, is a popular succulent. Native to Madagascar, this plant is cherished for its vibrant, long-lasting flowers and relatively easy care. The yellow variety adds a cheerful burst of color, making it an appealing indoor plant.
Caring for Your Yellow Kalanchoe Blossfeldiana
Light Needs
Yellow Kalanchoe thrives in bright, indirect light, which promotes abundant flowering. While it tolerates some direct sunlight, intense afternoon exposure can scorch its leaves. Insufficient light may lead to leggy stems and fewer blooms. A south- or east-facing window generally provides ideal conditions.
Watering Practices
As a succulent, Kalanchoe stores water in its leaves. The “soak and dry” method is recommended: water thoroughly until it drains, then allow the soil to dry completely before the next watering. Overwatering is a common issue that can lead to root rot. During winter, reduce watering frequency significantly.
Soil and Potting Requirements
Well-draining soil is important for Kalanchoe, preventing water from pooling around the roots. A cactus or succulent potting mix is ideal, or combine potting soil with perlite or coarse sand. Pots with drainage holes are essential for water runoff. Kalanchoes prefer to be slightly root-bound, so choose a pot only slightly larger when repotting.
Temperature and Humidity Preferences
Kalanchoe prefers average room temperatures, ideally 60-75°F (15-24°C) during the day. Nighttime temperatures around 50-60°F (10-15°C) can benefit flowering. This plant tolerates typical indoor humidity levels, preferring moderate to low moisture. Avoid placing it near drafty windows or heating vents, as sudden temperature fluctuations can be detrimental.
Fertilizing Guidelines
During the active growing season (spring and summer), Kalanchoe benefits from regular fertilization. A balanced liquid fertilizer, such as a 20-20-20 formula, diluted to half-strength and applied monthly, is suitable. Avoid fertilization during fall and winter dormancy or when the plant is actively flowering. Over-fertilizing can lead to excessive foliage growth at the expense of blooms.
Encouraging New Blooms
Encouraging Kalanchoe to rebloom involves mimicking its natural light cycle. As a “short-day” plant, it requires extended darkness to initiate flower buds. To rebloom, provide 12 to 14 hours of complete darkness daily for about six weeks. During the remaining 10 to 12 hours, the plant needs bright, indirect light.
Achieve darkness by placing the plant in a dark closet or covering it with a box or cloth. Consistency is important for reblooming. During this period, reduce watering and avoid fertilization, resuming normal care once flower buds appear. Deadheading spent flowers encourages more blooms and redirects energy away from seed production.
Addressing Common Problems
Wilting leaves often signal water stress, stemming from either underwatering or overwatering, which can lead to root rot. Check soil moisture by inserting a finger about an inch deep to determine watering needs. Yellowing foliage can also indicate overwatering or nutrient deficiencies.
Pest infestations, such as aphids, mealybugs, or spider mites, can affect Kalanchoe. Inspect the plant regularly for small insects or sticky residue for early detection. For mild infestations, a mild soap solution applied to affected areas is effective. Proper air circulation also helps prevent pests and fungal issues.
Propagating Yellow Kalanchoe
Yellow Kalanchoe is easily propagated through stem cuttings. Select a healthy, non-flowering stem section, typically 2 to 4 inches long. Remove leaves from the lower portion, exposing a few nodes.
Allow the cut end to dry and form a callus for a day or two to prevent rot. Once callused, plant the cutting into a well-draining succulent or cactus mix. Water sparingly until new roots develop, which usually takes a few weeks. Rooting in water is not recommended due to rot risk.