Mandevilla lanuginosa
Care, watering, light and tips for Mandevilla lanuginosa on Floravia.
Quick facts
- Family: Apocynaceae
- Difficulty: Moderate care
- Watering: every 3 days
- Light: Partial shade
- Temperature: 10–30 °C
- Toxicity: Toxic to pets
About Mandevilla lanuginosa
Mandevilla lanuginosa, commonly known as St. John's flower, is a vigorous and fast-growing climbing vine, valued for its abundant, pure white trumpet-shaped flowers, often with a pale yellow center. Its leaves are glossy dark green and slightly pubescent, giving it a velvety appearance. It is ideal for covering pergolas, trellises, or walls, adding an exotic and elegant touch to any garden or patio.
Native range
Brazil and Paraguay
Care tips
It requires full sun to partial shade for optimal flowering, although in very hot climates it will appreciate some sun protection during the hottest hours. Watering should be regular during the growing season, keeping the substrate moist but not waterlogged, and reducing it in winter. It prefers well-drained soil rich in organic matter. A common mistake is the lack of adequate support, which hinders its climbing development.
How to save a dying Mandevilla lanuginosa
- Warning signs
- Yellowing or drooping leaves, soft shoots, no flowering. Could be due to over/underwatering or pests.
- First aid
- Check soil moisture. Prune damaged stems. Inspect for pests (spider mites, mealybugs). Move to bright, indirect light.
- What kills it
- Constant waterlogging causing root rot. Also extreme drought and severe cold. Requires good drainage.
- Can it be saved?
- Yes, if roots are not completely rotted. Act quickly; Dipladenia is resilient but sensitive to water issues.