Mitchell grass Plant Care
Thyridolepis mitchelliana (Nees) S.T.Blake
Updated · Sources · How we source care data
Thyridolepis mitchelliana is a plant in the grass family, found in all mainland states and territories of Australia, except Victoria.
Every 7–14 days
Full sun to partial shade
60–85°F
40–70%
At a glance
How do you care for Mitchell grass?
Water Mitchell 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 60–85°F (16–29°C) and 40–70% humidity. Fertilize it every 8 months during the growing season.
Where Is the Mitchell grass Native To?
What Is the Mitchell grass?
Mitchell grass (Thyridolepis mitchelliana) belongs to the Poaceae family within the Thyridolepis genus. Mitchell grass is native to all mainland states and territories of Australia, except Victoria. Mitchell grass is also known as Mulga Mitchell grass.
Mitchell grass displays a tall, clumping grass growth habit, reaching up to 6 ft tall with a spread of approximately 2 ft. Mitchell grass produces small inconspicuous flowers on tall spikes.
Leaf size: approximately 12 inches.
How Often Should You Water a Mitchell grass?
Thyridolepis mitchelliana 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 Mitchell grass Need?
Mitchell grass thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Mitchell grass Prefer?
Thyridolepis mitchelliana grows best at temperatures of 60–85°F. Mitchell grass prefers humidity levels of 40–70%.
Temperature
60–85°F
Humidity
40–70%
What Soil Mix Works Best for a Mitchell grass?
Well-draining sandy loam with added organic matter. Good drainage is essential for Mitchell grass to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Mitchell grass?
Feed Mitchell grass every 8 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 8 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 Mitchell grass?
Repot every 2-3 years in early 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 Mitchell grass?
Mitchell grass can be propagated through division, seeds.
Is the Mitchell grass Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Mitchell 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 Mitchell grass?
Mitchell 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 Mitchell grass Need?
Mitchell grass grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Mitchell grass is native to all mainland states and territories of Australia, except Victoria. In cooler regions, grow Mitchell grass as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Mitchell 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 Thyridolepis genus — compare its care with other Thyridolepis species on PlantoScan.
Thyridolepis is part of the Poaceae plant family — browse all Poaceae genera and species.
Mitchell 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: Thyridolepis mitchelliana (Nees) S.T.Blake, family Poaceae (first published in Contr. Queensland Herb. 13: 27 (1972)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Mitchell 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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