Xyris scabrifolia Plant Care
Xyris scabrifolia R.M.Harper
Updated · Sources · How we source care data
Xyris scabrifolia, common name Harper's yelloweyed grass, is a North American species of perennial in the yellow-eyed-grass family. It grows in the southern United States from Texas to North Carolina.
Every 3–5 days
Full sun to partial shade
60–85°F
50–70%
At a glance
How do you care for Xyris scabrifolia?
Water Xyris scabrifolia every 3–5 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 60–85°F (16–29°C) and 50–70% humidity. Fertilize it every 6 months during the growing season.
What Is the Xyris scabrifolia?
Xyris scabrifolia (Xyris scabrifolia) belongs to the Xyridaceae family within the Xyris genus.
Xyris scabrifolia displays a grass-like perennial growth habit, reaching up to 1 ft tall with a spread of approximately 0.5 ft. Xyris scabrifolia produces small yellow flowers on tall spikes.
Leaf size: approximately 12 inches.
How Often Should You Water a Xyris scabrifolia?
Xyris scabrifolia requires watering every 3–5 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 3–5 days
Let soil partially dry between waterings
What Light Does the Xyris scabrifolia Need?
Xyris scabrifolia thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Xyris scabrifolia Prefer?
Xyris scabrifolia grows best at temperatures of 60–85°F. Xyris scabrifolia prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
60–85°F
Humidity
50–70%
What Soil Mix Works Best for a Xyris scabrifolia?
Sandy, acidic soil with good drainage. Good drainage is essential for Xyris scabrifolia to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Xyris scabrifolia?
Feed Xyris scabrifolia 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 Xyris scabrifolia?
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 Xyris scabrifolia?
Xyris scabrifolia can be propagated through division, seeds. Similar propagation techniques also apply to ambiguous yellow-eyed grass plant care, which shares the same genus.
Is the Xyris scabrifolia Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Xyris scabrifolia, 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 Xyris scabrifolia?
Xyris scabrifolia is susceptible to aphids, spider mites. 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 Xyris scabrifolia Need?
Xyris scabrifolia grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. In cooler regions, grow Xyris scabrifolia as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Xyris scabrifolia 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 Xyris genus — compare its care with other Xyris species on PlantoScan.
Xyris is part of the Xyridaceae plant family — browse all Xyridaceae genera and species.
Xyris scabrifolia thrives in bright light and direct sun — see other bright-light plants.
More Xyris Species
Other Xyris species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Xyris scabrifolia R.M.Harper, family Xyridaceae (first published in Bull. Torrey Bot. Club 30: 325 (1903)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Xyris scabrifolia, 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 13a, 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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