Odontadenia geminata Plant Care
Odontadenia geminata Müll.Arg.
Updated · Sources · How we source care data
This unique plant is known for its striking bright red tubular flowers that contrast beautifully against its dark green, glossy leaves. Originating from tropical regions of Central and South America, Odontadenia geminata is highly sought after by plant collectors for its showy flowers and ability to attract hummingbirds with its nectar-rich blooms.
Every 7–10 days
Bright indirect light
65–80°F
50–70%
At a glance
How do you care for Odontadenia geminata?
Water Odontadenia geminata every 7–10 days, letting the top layer of soil dry out between waterings, and give it bright indirect light. It prefers temperatures of 65–80°F (18–27°C) and 50–70% 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 Odontadenia geminata Native To?
What Is the Odontadenia geminata?
Odontadenia geminata (Odontadenia geminata) belongs to the Apocynaceae family within the Odontadenia genus. Odontadenia geminata is native to the 3 Guianas, Venezuela, Colombia, Ecuador, Peru, Bolivia and North Brazil.
Odontadenia geminata displays a vining, climbing shrub growth habit, reaching up to 4 ft tall with a spread of approximately 2 ft. Odontadenia geminata produces small, tubular flowers in clusters of pink, red, or white.
Leaf size: approximately 4 inches.
How Often Should You Water a Odontadenia geminata?
Odontadenia geminata 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 Odontadenia geminata Need?
Odontadenia geminata thrives in bright indirect light. Avoid placing Odontadenia geminata in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Bright indirect light
What Temperature and Humidity Does the Odontadenia geminata Prefer?
Odontadenia geminata grows best at temperatures of 65–80°F. Odontadenia geminata prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
65–80°F
Humidity
50–70%
What Soil Mix Works Best for a Odontadenia geminata?
Well-draining, rich soil mix with added perlite for extra drainage. Good drainage is essential for Odontadenia geminata to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Odontadenia geminata?
Feed Odontadenia geminata 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 Odontadenia geminata?
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 Odontadenia geminata?
Odontadenia geminata can be propagated through stem cuttings, air layering.
Is the Odontadenia geminata Toxic to Pets and Children?
Toxic (caution)
Reported as toxic in our plant data. Not verified by the ASPCA.
Toxic to humans and pets 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 Odontadenia geminata?
Odontadenia geminata is susceptible to aphids, spider mites, mealybugs. 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 Odontadenia geminata Need?
Odontadenia geminata grows outdoors in USDA Zone 10b – 12b. It survives winters down to planting zone 10b. Odontadenia geminata is native to the 3 Guianas, Venezuela, Colombia, Ecuador, Peru, Bolivia and North Brazil. In cooler regions, grow Odontadenia geminata as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 10b – 12b
Keep exploring plants
Odontadenia geminata 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 Odontadenia genus — compare its care with other Odontadenia species on PlantoScan.
Odontadenia is part of the Apocynaceae plant family — browse all Apocynaceae genera and species.
Odontadenia geminata 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: Odontadenia geminata Müll.Arg., family Apocynaceae (first published in Fl. Bras. 6(1): 119 (1860)) — World Flora Online record, IPNI name record.
- Pet toxicity: Odontadenia geminata 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.
- Hardiness zone: USDA Zone 10b – 12b, 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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