Apocynaceae
Mandevilla splendens (Dipladenia)
Mandevilla splendens
Grows best in full sun to light shade with at least six hours of direct light daily. Water when the top couple of inches of soil dry out, tapering off in winter. Plant in well-draining, organically rich soil and feed every two months during the growing season.
Every 7 days
Direct sun
10° - 35°C
% - %
Categories
What is Mandevilla?
Mandevilla (Mandevilla splendens) is a medium-care plant from the Apocynaceae family. Mandevilla splendens, widely sold in nurseries as Dipladenia, is a tropical evergreen twining vine in the Apocynaceae family, native to southeastern Brazil. Its trumpet-shaped, pale pink flowers deepen to rose as they age and bloom from spring through fall, attracting hummingbirds. The milky sap is...
Mandevilla grows up to 6.0m, spread of 200cm, watering every 7 days, 10°C – 35°C. It is suitable for indoor environments and not safe for pets.
Without precautions, ingestion can cause irritation in pets. Keep out of reach of cats and dogs. Without adequate drainage, root rot can develop within 14 days.
How to Care for Mandevilla?
TLDR: Mandevilla needs Direct sun, watering every 7 days, and temperatures between 10-35°C with 40-70% humidity.
How Often Should You Water Mandevilla?
Water 2-4 times a week in summer; reduce to once every 10-15 days in winter, avoiding soggy soil that leads to root rot.
How Much Light Does Mandevilla Need?
Provide at least 6 hours of bright, direct light; in very hot climates, give afternoon shade to prevent scorching.
What Is the Best Soil for Mandevilla?
Use a well-draining mix of garden soil, coarse sand, and organic compost.
What Pot Should You Use for Mandevilla?
A container with drainage holes; terracotta helps prevent overly wet roots.
Care Schedule
Fertilize
Every 60 days
Repot
Every 365 days
What Is Mandevilla and Where Does It Come From?
Mandevilla splendens, widely sold in nurseries as Dipladenia, is a tropical evergreen twining vine in the Apocynaceae family, native to southeastern Brazil. Its trumpet-shaped, pale pink flowers deepen to rose as they age and bloom from spring through fall, attracting hummingbirds. The milky sap is mildly toxic and can irritate skin and eyes, so wear gloves when pruning.
How to Propagate Mandevilla?
Stem cutting
Wear gloves when handling the sap, which can irritate skin; change the water weekly if propagating in water.
- 1 Cut a healthy stem section with 2-3 nodes, avoiding flowers.
- 2 Let the milky sap dry for a few minutes before planting.
- 3 Plant in a light, moist potting mix or place in water until roots form.
- 4 Keep in bright, indirect light until new roots appear.
Materials needed:
How Big Does Mandevilla Grow?
TLDR: Mandevilla can reach up to 6.0m tall with Fast growth rate.
Max height
6.0m
Spread
2.0m
Growth rate
Fast
Foliage
Evergreen
Warning: Toxic Plant
This plant can be toxic if ingested. Keep out of reach of:
Plant Uses
Ornamental
Great for decoration
Is your plant showing symptoms?
Click on the symptom to discover possible causes:
What Diseases Commonly Affect Mandevilla?
TLDR: Mandevilla is susceptible to 9 known diseases. Monitor regularly for early detection.
Root Rot
Root rot is a serious fungal disease that affects the root system of plants, causing them to decay and die. It is primarily caused by overwatering, poor drainage, or soil-borne fungi such as Pythium, Phytophthora, Rhizoctonia, and Fusarium. The disease thrives in waterlogged conditions where roots are deprived of oxygen, making them susceptible to fungal infection.
Powdery Mildew
Powdery mildew is a common fungal disease caused by various fungi species including Erysiphe, Podosphaera, Oïdium, and Leveillula. It affects over 10,000 plant species worldwide. The disease thrives in warm, dry climates with high humidity and appears as a distinctive white powdery coating on plant surfaces.
Grey Mould
Leaf Spot
Leaf spot is a common fungal disease caused by various pathogens including Alternaria, Ascochyta, Colletotrichum, Septoria, and Venturia. It primarily affects leaves, causing discolored spots that can lead to premature leaf drop if left untreated.
Meaning & Symbolism
Often associated with tropical vitality and warmth, it is a popular choice for sunny patios and trellises.
Fun Facts
Its trumpet-shaped flowers attract hummingbirds and butterflies.
Despite the common name Dipladenia, it botanically belongs to the genus Mandevilla.
It can climb up to 20 feet (6 m) when grown on a trellis or support.
Frequently asked questions
Is Mandevilla splendens toxic to cats and dogs?
How often should I water my Dipladenia?
Why isnt my Mandevilla blooming?
Can Dipladenia be grown indoors?
Compare with similar plants
| Attribute | Difficulty | Light | Watering | Pet Safe |
|---|---|---|---|---|
| Dark Fieldcap | Medium | Low light | 2d | ⚠️ |
| Azalea | Medium | Partial shade | 3d | ⚠️ |
| Muriel's Bamboo | Medium | Partial shade | 3d | ✓ |
| Bougainvillea | Medium | Direct sun | 7d | ⚠️ |
Choose & Compare
Sources & References
- Dipladenia (Mandevilla splendens): Cultivo, Cuidados e Curiosidades
- Saiba como cultivar a Dipladenia (Mandevilla splendens)
- The Complete Dipladenia Plant Care Guide
- Unhealthy Mandevilla Plants: How To Treat Mandevilla Disease Problems
- About Mandevilla Pests
- Mandevilla splendens (Shining Mandevilla)
- Mandevilla (Annual Vine) - The Morton Arboretum