California Oat Grass Plant Care
Danthonia californica Bol.
Updated · Sources · How we source care data
Danthonia californica is a species of grass known by the common name California oatgrass. This plant is native to two separate regions of the Americas, western North America from California to Saskatchewan, and Chile.
Every 7–14 days
Full sun to partial shade
60–80°F
40–70%
At a glance
How do you care for California Oat Grass?
Water California Oat Grass every 7–14 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 60–80°F (16–27°C) and 40–70% humidity.
Where Is the California Oat Grass Native To?
What Is the California Oat Grass?
California Oat Grass (Danthonia californica) belongs to the Poaceae family within the Danthonia genus. California Oat Grass is native to two separate regions of the Americas, western North America from California to Saskatchewan, and Chile.
California Oat Grass displays a clumping grass growth habit, reaching up to 1.5 ft tall with a spread of approximately 1 ft. California Oat Grass produces small inconspicuous flowers on slender stems.
Leaf size: approximately 6 inches.
How Often Should You Water a California Oat Grass?
Danthonia californica requires watering every 7–14 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 7–14 days
Let soil partially dry between waterings
What Light Does the California Oat Grass Need?
California Oat Grass thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the California Oat Grass Prefer?
Danthonia californica grows best at temperatures of 60–80°F. California Oat Grass prefers humidity levels of 40–70%.
Temperature
60–80°F
Humidity
40–70%
What Soil Mix Works Best for a California Oat Grass?
Well-draining sandy loam with good organic content. Good drainage is essential for California Oat Grass to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a California Oat Grass?
Divide and replant clumps every 2-3 years. 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 California Oat Grass?
California Oat Grass can be propagated through seeds, division of clumps. Similar propagation techniques also apply to heathland grass plant care, which shares the same genus.
Is the California Oat Grass Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list California Oat Grass, 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 California Oat Grass?
California Oat Grass is susceptible to aphids, grasshoppers, cutworms. 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 California Oat Grass Need?
California Oat Grass grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. California Oat Grass is native to two separate regions of the Americas, western North America from California to Saskatchewan, and Chile. In cooler regions, grow California Oat Grass as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
California Oat Grass 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 Danthonia genus — compare its care with other Danthonia species on PlantoScan.
Danthonia is part of the Poaceae plant family — browse all Poaceae genera and species.
California Oat Grass 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: Danthonia californica Bol., family Poaceae (first published in Proc. Calif. Acad. Sci. 2: 182 (1863)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list California Oat Grass, 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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