Coastal Rice Plant Care
Oryza coarctata Roxb.
Updated · Sources · How we source care data
Oryza coarctata, synonym Porteresia coarctata, is a species of grass which is related to other rice species in the Oryzeae botanical tribe, part of the family Poaceae. It is native to Pakistan, India, Bangladesh, and Myanmar.
Every 1–3 days
Full sun
70–90°F
70–90%
At a glance
How do you care for Coastal Rice?
Water Coastal Rice every 1–3 days, letting the top layer of soil dry out between waterings, and give it full sun. It prefers temperatures of 70–90°F (21–32°C) and 70–90% humidity.
Where Is the Coastal Rice Native To?
What Is the Coastal Rice?
Coastal Rice (Oryza coarctata) belongs to the Poaceae family within the Oryza genus. Coastal Rice is native to Pakistan, India, Bangladesh, and Myanmar.
Coastal Rice displays a tall, grassy growth habit, reaching up to 6 ft tall with a spread of approximately . Coastal Rice produces inconspicuous flowers in panicles.
Leaf size: approximately 12 inches.
How Often Should You Water a Coastal Rice?
Oryza coarctata requires watering every 1–3 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 1–3 days
Let soil partially dry between waterings
What Light Does the Coastal Rice Need?
Coastal Rice thrives in full sun.
Light Requirement
Full sun
What Temperature and Humidity Does the Coastal Rice Prefer?
Oryza coarctata grows best at temperatures of 70–90°F. Coastal Rice prefers humidity levels of 70–90%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
70–90°F
Humidity
70–90%
What Soil Mix Works Best for a Coastal Rice?
Rich, loamy soil with good drainage. Good drainage is essential for Coastal Rice to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Coastal Rice?
Not typically potted, grown in flooded fields. 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 Coastal Rice?
Coastal Rice can be propagated through seeds. Similar propagation techniques also apply to australian rice plant care, which shares the same genus.
Is the Coastal Rice Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Coastal Rice, 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 Coastal Rice?
Coastal Rice is susceptible to rice blast, brown spot, rice bugs. 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 Coastal Rice Need?
Coastal Rice grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. Coastal Rice is native to Pakistan, India, Bangladesh, and Myanmar. In cooler regions, grow Coastal Rice as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13b
Keep exploring plants
Coastal Rice 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 Oryza genus — compare its care with other Oryza species on PlantoScan.
Oryza is part of the Poaceae plant family — browse all Poaceae genera and species.
Coastal Rice thrives in bright light and direct sun — see other bright-light plants.
More Oryza Species
Other Oryza species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Oryza coarctata Roxb., family Poaceae (first published in Fl. Ind. ed. 1832 , 2: 206 (1832)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Coastal Rice, 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 13b, calculated from the plant's minimum temperature.
- 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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