Roundseed Witchgrass Plant Care
Dichanthelium sphaerocarpon (Elliott) Gould
Updated · Sources · How we source care data
Dichanthelium sphaerocarpon, also called Panicum polyanthes, common name round-seed panic grass, is a plant found in North America. It is listed as endangered in Michigan.
Full sun to partial shade
At a glance
How do you care for Roundseed Witchgrass?
Roundseed Witchgrass grows best in full sun to partial shade.
Where Is the Roundseed Witchgrass Native To?
What Is the Roundseed Witchgrass?
Roundseed Witchgrass (Dichanthelium sphaerocarpon) belongs to the Poaceae family within the Dichanthelium genus. Roundseed Witchgrass is native to North America. Roundseed Witchgrass is also known as Sphaerocarpon Witchgrass.
Roundseed Witchgrass displays a grass-like clumping perennial growth habit, reaching up to tall with a spread of approximately . Roundseed Witchgrass produces small inconspicuous flowers on tall stems.
What Light Does the Roundseed Witchgrass Need?
Roundseed Witchgrass thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Soil Mix Works Best for a Roundseed Witchgrass?
Well-draining loamy soil with good organic content. Good drainage is essential for Roundseed Witchgrass to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Roundseed Witchgrass?
Divide and 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 Roundseed Witchgrass?
Roundseed Witchgrass can be propagated through seeds, division of clumps. Similar propagation techniques also apply to bosc's witchgrass plant care, which shares the same genus.
Is the Roundseed Witchgrass Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Roundseed Witchgrass, 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 Roundseed Witchgrass?
Roundseed Witchgrass 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.
Keep exploring plants
Roundseed Witchgrass 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 Dichanthelium genus — compare its care with other Dichanthelium species on PlantoScan.
Dichanthelium is part of the Poaceae plant family — browse all Poaceae genera and species.
Roundseed Witchgrass thrives in bright light and direct sun — see other bright-light plants.
More Dichanthelium Species
Other Dichanthelium species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Dichanthelium sphaerocarpon (Elliott) Gould, family Poaceae (first published in Brittonia 26: 60 (1974)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Roundseed Witchgrass, 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.
- 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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