Green Foxtail Plant Care
Setaria viridis (L.) P.Beauv.
Updated · Sources · How we source care data
Setaria viridis is a species of grass known by many common names, including green foxtail, green bristlegrass, and wild foxtail millet. It is sometimes considered a subspecies of Setaria italica.
Every 3–7 days
Full sun
60–85°F
40–70%
At a glance
How do you care for Green Foxtail?
Water Green Foxtail every 3–7 days, letting the top layer of soil dry out between waterings, and give it full sun. It prefers temperatures of 60–85°F (16–29°C) and 40–70% humidity. Fertilize it every 8 months during the growing season.
What Is the Green Foxtail?
Green Foxtail (Setaria viridis) belongs to the Poaceae family within the Setaria genus. Green Foxtail is native to Eurasia. Green Foxtail is also known as Green Bristlegrass, Wild Millet.
Green Foxtail displays a tall, upright grass growth habit, reaching up to 5 ft tall with a spread of approximately 1 ft. Green Foxtail produces small, inconspicuous flowers on spikelets.
Leaf size: approximately 12 inches.
How Often Should You Water a Green Foxtail?
Setaria viridis requires watering every 3–7 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 3–7 days
Let soil partially dry between waterings
What Light Does the Green Foxtail Need?
Green Foxtail thrives in full sun.
Light Requirement
Full sun
What Temperature and Humidity Does the Green Foxtail Prefer?
Setaria viridis grows best at temperatures of 60–85°F. Green Foxtail prefers humidity levels of 40–70%.
Temperature
60–85°F
Humidity
40–70%
What Soil Mix Works Best for a Green Foxtail?
Well-draining loamy soil with added compost for nutrients. Good drainage is essential for Green Foxtail to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Green Foxtail?
Feed Green Foxtail 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 Green Foxtail?
Repot every 1-2 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 Green Foxtail?
Green Foxtail can be propagated through seeds. Similar propagation techniques also apply to yellow bristlegrass plant care, which shares the same genus.
Is the Green Foxtail Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Green Foxtail, 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 Green Foxtail?
Green Foxtail is susceptible to aphids, grasshoppers. 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 Green Foxtail Need?
Green Foxtail grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Green Foxtail is native to Eurasia. In cooler regions, grow Green Foxtail as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Green Foxtail 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 Setaria genus — compare its care with other Setaria species on PlantoScan.
Setaria is part of the Poaceae plant family — browse all Poaceae genera and species.
Green Foxtail thrives in bright light and direct sun — see other bright-light plants.
More Setaria Species
Other Setaria species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Setaria viridis (L.) P.Beauv., family Poaceae (first published in Ess. Agrostogr. : 51 (1812)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Green Foxtail, 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.
Identify Plants Like the
Green Foxtail Instantly
Scan any plant with your phone camera and get instant ID, care tips, water and fertilizer reminders, and health checks — all in one app.
Free
to download
iOS & Android
platforms
Light & dark
mode
100,000+
species