Rocktrumpet
Mandevilla splendens
A twining tropical vine featuring glossy, dark green, leathery leaves and large, trumpet-shaped white flowers with yellow throats.
- Light
- Full sun to partial shade, requiring at least 6 hours of bright light daily.
- Water
- Water regularly to keep soil moist during growing season, reducing frequency in cooler months. Drought tolerant once established, but prefers consistent moisture.
- Growth
- Perennial twining evergreen vine reaching mature heights of 10 to 15 feet with a moderate growth rate.
Care instructions
Provide bright, indirect sunlight or partial sun. Keep the soil evenly moist but well-draining, allowing the top inch to dry out between waterings. Use a balanced, slow-release fertilizer during the active growing season.
Growing details
Sunlight
Full sun to partial shade, requiring at least 6 hours of bright light daily.
Watering
Water regularly to keep soil moist during growing season, reducing frequency in cooler months. Drought tolerant once established, but prefers consistent moisture.
Soil
Rich, well-draining loamy soil with an optimal pH between 6.0 and 6.5.
Hardiness zone
USDA Hardiness Zones 9 to 11, grown as an annual in cooler regions.
Growth habit
Perennial twining evergreen vine reaching mature heights of 10 to 15 feet with a moderate growth rate.
Bloom season
Blooms continuously from late spring through autumn, producing large, funnel-shaped white flowers.
Propagation
Propagated primarily through stem cuttings taken in spring or early summer, using rooting hormone to encourage success.
Common pests & issues
Susceptible to aphids, mealybugs, and spider mites. Overwatering can lead to root rot.
Similar species
Allamanda cathartica, which features similar yellow trumpet flowers but differs in leaf arrangement and glossiness.