Troubleshooting
Kalanchoe 'Calandiva' problems — and how to fix them
Kalanchoe 'Calandiva' (Kalanchoe blossfeldiana 'Calandiva') is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Root and stem rot
From overwatering or a soggy, poorly drained mix. Let the soil dry between waterings and use gritty succulent compost with drainage holes.
Refusal to rebloom
Needs about six weeks of 12-14 hours uninterrupted darkness nightly to set buds. Any light at night during this period prevents flowering.
Powdery mildew
White powdery patches on leaves in humid, still conditions. Improve airflow, avoid wetting foliage and reduce ambient humidity.
Leggy, stretched growth
Caused by too little light. Move to a brighter spot and pinch back stems after flowering to restore compactness.
Prevent kalanchoe 'calandiva' problems before they start
Most kalanchoe 'calandiva' issues are care-mismatch, not bad luck. Dial in the basics:
- Common kalanchoe problems — the species this cultivar belongs to
- What's wrong with my plant? — the diagnosis apps compared
- Kalanchoe 'Calandiva' watering schedule
- Kalanchoe 'Calandiva' light requirements
- Best soil mix for kalanchoe 'calandiva'
- Kalanchoe 'Calandiva' temperature & humidity
- Full kalanchoe 'calandiva' care guide
Looking for kalanchoe 'calandiva' in general rather than its problems? Read the full kalanchoe 'calandiva' care guide — light, water, soil and feeding.
Kalanchoe 'Calandiva' problems — FAQ
Why is my kalanchoe 'calandiva' root and stem rot?
From overwatering or a soggy, poorly drained mix. Let the soil dry between waterings and use gritty succulent compost with drainage holes.
Why is my kalanchoe 'calandiva' refusal to rebloom?
Needs about six weeks of 12-14 hours uninterrupted darkness nightly to set buds. Any light at night during this period prevents flowering.
Why is my kalanchoe 'calandiva' powdery mildew?
White powdery patches on leaves in humid, still conditions. Improve airflow, avoid wetting foliage and reduce ambient humidity.
Why is my kalanchoe 'calandiva' leggy, stretched growth?
Caused by too little light. Move to a brighter spot and pinch back stems after flowering to restore compactness.