Photo: no rights reservedCC0 1.0via iNaturalist
Madagascar Rubber Vine Plant Care
Cryptostegia madagascariensis Bojer ex Decne.
Updated · Sources · How we source care data
This plant boasts vibrant pinkish-purple flowers that contrast beautifully with its glossy green leaves. Originating from Madagascar, Cryptostegia madagascariensis is highly sought after by plant collectors for its unique color combination and ability to attract pollinators like butterflies and bees.
Every 7–10 days
Full sun to partial shade
65–85°F
40–60%
At a glance
How do you care for Madagascar Rubber Vine?
Water Madagascar Rubber Vine every 7–10 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 65–85°F (18–29°C) and 40–60% humidity. Fertilize it every 6 months during the growing season. It is reported as toxic to pets, so keep it out of reach of pets.
Where Is the Madagascar Rubber Vine Native To?
What Is the Madagascar Rubber Vine?
Madagascar Rubber Vine (Cryptostegia madagascariensis) belongs to the Apocynaceae family within the Cryptostegia genus. Madagascar Rubber Vine is native to western and northern Madagascar. Madagascar Rubber Vine is also known as Purple Allamanda.
Madagascar Rubber Vine displays a vining, climbing shrub growth habit, reaching up to 6 ft tall with a spread of approximately 3 ft. Madagascar Rubber Vine produces showy clusters of pink or purple trumpet-shaped flowers.
Leaf size: approximately 4 inches.
How Often Should You Water a Madagascar Rubber Vine?
Cryptostegia madagascariensis requires watering every 7–10 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 7–10 days
Let soil partially dry between waterings
What Light Does the Madagascar Rubber Vine Need?
Madagascar Rubber Vine thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Madagascar Rubber Vine Prefer?
Cryptostegia madagascariensis grows best at temperatures of 65–85°F. Madagascar Rubber Vine prefers humidity levels of 40–60%.
Temperature
65–85°F
Humidity
40–60%
What Soil Mix Works Best for a Madagascar Rubber Vine?
Well-draining sandy soil mix with added perlite for improved drainage. Good drainage is essential for Madagascar Rubber Vine to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Madagascar Rubber Vine?
Feed Madagascar Rubber Vine every 6 months during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.
Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.
Fertilizing
Every 6 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Madagascar Rubber Vine?
Repot every 1-2 years in spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Madagascar Rubber Vine?
Madagascar Rubber Vine can be propagated through stem cuttings, air layering. Similar propagation techniques also apply to rubber vine plant care, which shares the same genus.
Is the Madagascar Rubber Vine Toxic to Pets and Children?
Toxic (caution)
Reported as toxic in our plant data. Not verified by the ASPCA.
Toxic to humans and pets, especially if ingested
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Madagascar Rubber Vine?
Madagascar Rubber Vine is susceptible to aphids, spider mites, whiteflies. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
What USDA Hardiness Zone Does the Madagascar Rubber Vine Need?
Madagascar Rubber Vine grows outdoors in USDA Zone 10a – 11b. It survives winters down to planting zone 10a. Madagascar Rubber Vine is native to western and northern Madagascar. In cooler regions, grow Madagascar Rubber Vine as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 10a – 11b
Keep exploring plants
Madagascar Rubber Vine is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Cryptostegia genus — compare its care with other Cryptostegia species on PlantoScan.
Cryptostegia is part of the Apocynaceae plant family — browse all Apocynaceae genera and species.
Madagascar Rubber Vine thrives in bright light and direct sun — see other bright-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Cryptostegia madagascariensis Bojer ex Decne., family Apocynaceae (first published in Prodr. 8: 492 (1844)) — World Flora Online record, IPNI name record.
- Pet toxicity: Madagascar Rubber Vine is reported as toxic to pets in our plant data (not verified by the ASPCA), so treat it with caution. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Photo: Public domain, CC0 1.0, iNaturalist — original.
- Hardiness zone: USDA Zone 10a – 11b, estimated from the plant's typical growing conditions.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
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