Rattlesnake Bean Plant Care
Rhynchosia precatoria (Humb. & Bonpl. ex Willd.) DC.
Updated · Sources · How we source care data
Rhynchosia precatoria, known variously as rosary snoutbean, 'crab-eyes', or ojo de perico, among other names, is a viny member of the family Fabaceae.
Full sun to partial shade
At a glance
How do you care for Rattlesnake Bean?
Rattlesnake Bean grows best in full sun to partial shade.
What Is the Rattlesnake Bean?
Rattlesnake Bean (Rhynchosia precatoria) belongs to the Fabaceae family within the Rhynchosia genus.
Rattlesnake Bean displays a vining, trailing growth habit, reaching up to tall with a spread of approximately . Rattlesnake Bean produces small yellow flowers in clusters.
What Light Does the Rattlesnake Bean Need?
Rattlesnake Bean thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Soil Mix Works Best for a Rattlesnake Bean?
Well-draining sandy loam with added organic matter for moisture retention. Good drainage is essential for Rattlesnake Bean to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Rattlesnake Bean?
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 Rattlesnake Bean?
Rattlesnake Bean can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to dolicholus latifolius plant care, which shares the same genus.
Is the Rattlesnake Bean Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Rattlesnake Bean, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
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 Rattlesnake Bean?
Rattlesnake Bean 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.
Keep exploring plants
Rattlesnake Bean 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 Rhynchosia genus — compare its care with other Rhynchosia species on PlantoScan.
Rhynchosia is part of the Fabaceae plant family — browse all Fabaceae genera and species.
Rattlesnake Bean thrives in bright light and direct sun — see other bright-light plants.
More Rhynchosia Species
Other Rhynchosia species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Rhynchosia precatoria (Humb. & Bonpl. ex Willd.) DC., family Fabaceae (first published in Prodr. [A. P. de Candolle] 2: 385. 1825 [mid Nov 1825]) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Rattlesnake Bean, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- 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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