Mandevilla Mandevilla sanderi
Mandevilla (Mandevilla sanderi) is an evergreen perennial flowering plant in the Apocynaceae family, native to South-eastern Brazil. It grows 1.5–3 m (4.9–10 ft) tall and 60 cm–1.2 m (24 in–3.9 ft) wide, wants full sun and moderate water, and is hardy to about 3 °C (37 °F). Space plants about 60 cm (24 in) apart.
Plan Mandevilla in your garden →
Free. Draw your beds, then watch it grow through the year in 2D and 3D.
Mandevilla at a glance
| Type | Perennial flowering plant, evergreen |
|---|---|
| Family | Apocynaceae |
| Mature height | 1.5–3 m (4.9–10 ft) |
| Mature spread | 60 cm–1.2 m (24 in–3.9 ft) |
| Spacing | 60 cm (24 in) centre to centre |
| Sun | Full sun, at least 5 h of direct sun a day |
| Water | Moderate; drought tolerance low, waterlogging tolerance none |
| Soil pH | 5.5–7 |
| Cold hardiness | About 3 °C (37 °F) once established (roughly USDA zone 10) |
| Heat stress | Likely above about 38 °C (100 °F) |
| Flowering | from about May for 17–29 weeks (northern hemisphere; later in cold climates, earlier in warm ones) |
| Wind tolerance | None |
| Pollinator value | Moderate |
| Edible | Not grown as food |
| Native to | South-eastern Brazil |
| Common in gardens of | 🇧🇷 Brazil, 🇺🇸 United States |
Is Mandevilla toxic?
- People: mildly toxic
- Cats: not well documented
- Dogs: not well documented
- Parts: sap
Milky latex can irritate skin and mouth; ingestion is not well documented.
If a child or pet may have eaten part of a plant, call a poison centre or vet straight away.
Companion planting: what to grow with Mandevilla
No well-documented helpful pairing. Group it with plants that like full sun and moderate water.
Questions about Mandevilla
- How far apart should I plant Mandevilla?
- About 60 cm (24 in) apart, centre to centre. A mature plant spreads 60 cm–1.2 m (24 in–3.9 ft).
- Does Mandevilla need full sun?
- Full sun: at least 5 hours of direct sun a day.
- How much water does Mandevilla need?
- Moderate water. Drought tolerance is low and waterlogging tolerance none.
- How cold-hardy is Mandevilla?
- It tolerates about 3 °C (37 °F) once established, roughly USDA zone 10.
- When does Mandevilla flower?
- From about May for 17–29 weeks (northern hemisphere; later in cold climates, earlier in warm ones).
- Is Mandevilla poisonous to cats and dogs?
- For cats it is not well documented; for dogs not well documented; for people mildly toxic. Milky latex can irritate skin and mouth; ingestion is not well documented.
- What grows well with Mandevilla?
- There is no well-documented companion pairing for Mandevilla. Group it with plants that like the same sun (full sun) and water (moderate).
Sources and evidence
Evidence grade C (C: plausible, mixed evidence).
- RHS Plant Finder, Royal Horticultural Society
- UF/IFAS Extension tropical and subtropical fruit and landscape publications, University of Florida
- Extension Gardener Plant Toolbox, NC State Extension
Notes and assumptions
- Typical garden-form values; cultivars and local conditions differ.
- Tender twiner: perennial only in frost-free climates (about zone 10 and warmer); grown as an annual or pot plant elsewhere. Flowers on new growth in warm weather.
Reference values for planning, not horticultural, veterinary or medical advice. Varieties, soils and local climates differ: check with a local nursery or extension service.
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