Nymphoides macrospermum Plant Care
Nymphoides macrospermum Vasud.Nair
Updated · Sources · How we source care data
Nymphoides macrospermum is a critically endangered aquatic plant of the family Menyanthaceae endemic to Alwaye in Kerala, India. It is an annual herb which has been observed in paddy fields, lagoons and slowly flowing streams.
Full sun to partial shade
At a glance
How do you care for Nymphoides macrospermum?
Nymphoides macrospermum grows best in full sun to partial shade.
Where Is the Nymphoides macrospermum Native To?
What Is the Nymphoides macrospermum?
Nymphoides macrospermum (Nymphoides macrospermum) belongs to the Menyanthaceae family within the Nymphoides genus. Nymphoides macrospermum is native to Alwaye in Kerala, India.
Nymphoides macrospermum displays a floating aquatic plant growth habit, reaching up to tall with a spread of approximately . Nymphoides macrospermum produces small, delicate yellow flowers held above the water's surface.
What Light Does the Nymphoides macrospermum Need?
Nymphoides macrospermum thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Soil Mix Works Best for a Nymphoides macrospermum?
Rich, loamy soil with good moisture retention. Good drainage is essential for Nymphoides macrospermum to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Nymphoides macrospermum?
Does not require potting as it is a floating plant. 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 Nymphoides macrospermum?
Nymphoides macrospermum can be propagated through division, seeds. Similar propagation techniques also apply to water snowflake plant care, which shares the same genus.
Is the Nymphoides macrospermum Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Nymphoides macrospermum, 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 Nymphoides macrospermum?
Nymphoides macrospermum is susceptible to aphids, snails, algae. 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 Nymphoides macrospermum Need?
Nymphoides macrospermum grows outdoors in USDA Zone 10b – 12b. It survives winters down to planting zone 10b. Nymphoides macrospermum is native to Alwaye in Kerala, India. In cooler regions, grow Nymphoides macrospermum as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 10b – 12b
Keep exploring plants
Nymphoides macrospermum 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 Nymphoides genus — compare its care with other Nymphoides species on PlantoScan.
Nymphoides is part of the Menyanthaceae plant family — browse all Menyanthaceae genera and species.
Nymphoides macrospermum thrives in bright light and direct sun — see other bright-light plants.
More Nymphoides Species
Other Nymphoides species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Nymphoides macrospermum Vasud.Nair, family Menyanthaceae (first published in Kew Bull. 22: 101 1968) — World Flora Online record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Nymphoides macrospermum, 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.
- 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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