The Flapjack Kalanchoe (Kalanchoe luciae), often mislabeled as Kalanchoe thyrsiflora, is a distinctive succulent known for its paddle-like leaves and vibrant coloration. Its large, flat leaves form a striking rosette, developing fiery red margins with sufficient sunlight. This easy-care plant is popular among both novice and experienced enthusiasts.
Flapjack Kalanchoe Growing Conditions
Light
The Flapjack Kalanchoe thrives in bright, direct sunlight, ideally receiving at least six hours daily. Ample light exposure is crucial for developing the plant’s characteristic red or pink leaf edges. Indoors, a south-facing window is suitable, or a grow light can supplement natural light, especially in winter to prevent leggy growth. While it enjoys direct sun, intense afternoon sun in very hot climates can scorch leaves, so partial shade during peak hours is beneficial.
Watering
Proper watering is crucial for this drought-tolerant succulent. Use the “soak and dry” method: water thoroughly until it drains from the pot’s bottom, then allow the soil to dry completely before watering again. Avoid soggy conditions, as overwatering is a common issue. During winter, when the plant’s growth slows, reduce watering frequency significantly.
Soil
Flapjack Kalanchoes require well-draining soil to prevent waterlogged roots. A specialized succulent or cactus potting mix is ideal. Alternatively, regular potting mix can be amended with perlite, coarse sand, or pumice to improve drainage. Using a pot made from porous materials like unglazed terracotta or clay also aids in moisture evaporation.
Temperature and Humidity
This succulent thrives in warm temperatures, ranging from 60-75°F (15-24°C). It is not frost-tolerant and can be damaged or die below 50°F (10°C). In colder climates, grow it in containers to move indoors during winter. Flapjack Kalanchoe is accustomed to dry, arid conditions and tolerates typical indoor humidity well, as high humidity can contribute to fungal issues.
Fertilizing
Flapjack Kalanchoes are not heavy feeders and do not require much fertilizer. If desired, apply a balanced, diluted liquid fertilizer (e.g., half-strength) once or twice during the active growing season in spring and summer. Avoid fertilizing in winter when the plant is dormant, as this can lead to leggy growth or stress the plant. Light exposure plays a more significant role in its growth and flowering than fertilization.
Repotting
Repotting a Flapjack Kalanchoe is necessary every two to three years, or when the plant becomes root-bound. The best time to repot is late summer or fall, after its blooming period. Select a pot slightly larger than the previous one, ensuring it has drainage holes. When repotting, use fresh, well-draining succulent or cactus potting mix and handle the plant gently to avoid damaging its leaves or roots.
Propagating Flapjack Kalanchoe
Flapjack Kalanchoe can be propagated from leaf cuttings or offsets.
Leaf Cuttings
For leaf cuttings, gently twist a healthy leaf from the stem, ensuring a clean break. Allow the detached leaf to “callus” or dry for a few days to form a protective seal before placing it on well-draining soil. Roots and a new plantlet will eventually emerge from the calloused end.
Offsets
Offsets, also known as pups, are plantlets that grow around the base of the mature plant or along its flower stalk. Carefully separate these from the parent plant using a sharp, sterile knife or scissors. After separating, allow offsets to dry for one to two days to form a callus before planting them in well-draining soil. Both methods benefit from warmth and bright, indirect light during the rooting process.
Common Care Challenges
Watering Issues
Mushy or yellowing leaves on a Flapjack Kalanchoe indicate overwatering or root rot. To address this, reduce watering frequency and ensure the plant is in well-draining soil and a pot with adequate drainage holes. Conversely, shriveled or wrinkled leaves signal underwatering, indicating the plant needs more frequent watering.
Light Issues
Insufficient light can cause the plant to stretch and appear leggy (etiolation), and may also result in a loss of vibrant red leaf coloration. Moving the plant to a brighter location with more direct sunlight will help it regain its compact form and color.
Sunburn
Brown spots or scorched areas on the leaves are a sign of sunburn, which can occur if the plant is exposed to intense direct sun too quickly, especially after being in lower light conditions. Gradually acclimatizing the plant to brighter light can prevent this issue.