How to grow flapjack kalanchoe
Overview
Flapjack Kalanchoe is a herbaceous succulent grown for its bold, paddle-shaped leaves that flush red in strong light. It is a gap-filling plant that adds texture and seasonal colour to garden beds and containers.
Soil Preparation
Requires a very free-draining, sandy or gritty soil with a pH of 6.0–7.0. Amend heavy clay with coarse sand, pumice, or perlite to at least 50% volume. Avoid any moisture-retentive organic matter such as peat or compost.
Growing Guide
Position in part shade with protection from harsh afternoon sun, especially in hot inland areas. Use a free-draining, gritty succulent mix or add coarse sand and perlite to garden soil. Space plants 30–40 cm apart to allow for rosette spread. Water sparingly, only when the soil is completely dry, and avoid wetting the foliage. In cooler temperate zones, wait until after the last frost to plant out.
Care
Feed with a balanced, low-nitrogen succulent fertiliser in spring and early summer only. Remove dead or damaged leaves at the base to maintain airflow and prevent rot. Repot every 2–3 years in a slightly larger container to refresh the soil mix.
Companion Planting
Pair with other drought-tolerant succulents like Echeveria, Aeonium, and Sedum for a textured display. Avoid planting near moisture-loving ferns or leafy greens that require constant watering.
Common Pests & Risks
Mealybugs appear as white cottony masses on leaf axils; treat with a spot application of isopropyl alcohol. Aphids may cluster on new growth; control with a strong water spray or neem oil. Ensure good air circulation to prevent fungal issues.
Troubleshooting
Leaves turning pale green: too much shade or overwatering. Move to brighter spot and reduce water. Leaves dropping: overwatering or cold damage. Check soil moisture and protect from frost. Brown leaf tips: underwatering or low humidity. Increase water slightly but ensure drainage. Soft, mushy stems: root rot from poor drainage. Repot in gritty mix and cut away affected roots. Leggy growth: insufficient light. Gradually increase sun exposure.