The Tugela Cliff-Kalanchoe, scientifically known as Kalanchoe sexangularis, is a resilient succulent valued for its distinctive foliage. Its unique leaf coloration and growth habit make it an attractive addition to various garden styles or indoor arrangements. This low-maintenance plant is suitable for both beginner and experienced gardeners.
Characteristics and Origin
The Tugela Cliff-Kalanchoe features thick, fleshy leaves that are typically bright green, developing deep red or reddish-brown hues with more sunlight or environmental stress. Leaves have a hexagonal cross-section, giving rise to its “six-angled” common name, and often display prominent, wavy-notched edges. It grows upright, reaching heights of up to 3 feet (1 meter), and can develop a bushier appearance as it matures and branches. Small, yellow, tubular flowers bloom in clusters, usually from winter to spring.
This plant is native to Southern Africa (Zimbabwe, South Africa, Mozambique). Its natural habitat includes rocky, arid regions, often growing in partial shade. This origin explains its drought tolerance and ability to withstand intense sunlight, suiting it for rock gardens or arid landscapes.
Comprehensive Care Guide
Light Requirements
The Tugela Cliff-Kalanchoe thrives in bright, indirect light but tolerates partial shade. Indoors, a south or east-facing window with filtered sunlight is ideal. Outdoors, partial shade prevents leaf scorching during hot periods. More intense sunlight can enhance the vibrant red coloration of the leaves.
Watering Needs
This succulent prefers a “soak and dry” watering approach. Water thoroughly, allowing complete drainage, then let the soil dry out entirely before rewatering. Overwatering causes root rot; avoid waterlogged soil. Extend watering intervals during winter or dormant periods as growth slows.
Ideal Soil and Potting
It requires well-draining soil to prevent root rot. A cactus or succulent-specific potting mix is suitable for proper drainage. Amendments like perlite, coarse sand, or pumice can further enhance drainage. Choose a pot with drainage holes, proportionate to the plant’s size, to prevent excessive moisture retention.
Temperature and Humidity
The Tugela Cliff-Kalanchoe prefers warm temperatures (65-80°F / 18-27°C). Protect it from temperatures below 50°F (10°C), as frost causes damage. It tolerates typical indoor humidity (30-50%) and does not prefer high moisture levels. Good air circulation around the plant helps prevent fungal diseases.
Feeding Your Plant
The Tugela Cliff-Kalanchoe does not require heavy feeding. During the growing season (spring to early fall), fertilize every four to six weeks with a diluted, balanced succulent/cactus fertilizer. Water before fertilizing to avoid root burn. Avoid fertilizing during the dormant winter season when growth slows.
Pruning Techniques
Pruning maintains shape, removes dead or damaged foliage, and encourages bushier growth. Remove dead leaves, damaged stems, and spent flowers with clean, sharp shears. If leggy, cut back to a desired height just above a leaf node or branching point to promote new shoots. Prune after blooming, typically in spring or early summer.
Propagating Your Kalanchoe
Propagating Tugela Cliff-Kalanchoe is often done using stem cuttings. Select a healthy, non-flowering stem. Cut a few inches of stem with a clean, sharp tool, ensuring no nodes or leaves are cut off. Allow the cutting to dry and form a callus for a few days to a week to prevent rot.
Plant the callused cutting in a well-draining succulent soil mix. Keep soil lightly moist, avoiding overwatering while roots establish. Place in bright, indirect light. Roots typically form within two to three weeks.
Addressing Common Problems
Overwatering frequently causes root rot and mushy leaves. Reduce watering frequency and ensure effective soil drainage. Conversely, underwatering causes leaves to shrivel. Insufficient light causes leggy growth and reduced red coloration; move to a brighter location or provide supplemental lighting.
Common pests include mealybugs, aphids, spider mites, and scale insects. These pests weaken the plant by feeding on sap, causing distorted or yellowing leaves. If observed, isolate the plant and treat with insecticidal soap or neem oil. For physical removal, use an alcohol-dipped cotton swab. Fungal infections (powdery mildew, leaf spot) can occur due to high humidity or prolonged leaf moisture. Ensure good air circulation and avoid overhead watering to prevent these issues.