Photo: HectonichusCC BY-SA 3.0via Wikimedia Commonsresized / cropped
Mayweed Plant Care
Coleostephus myconis (L.) Cass.
Updated · Sources · How we source care data
Coleostephus myconis, known as the corn marigold, is an annual herbaceous plant belonging to the genus Coleostephus of the family Asteraceae.
Full sun to partial shade
At a glance
How do you care for Mayweed?
Mayweed grows best in full sun to partial shade.
What Is the Mayweed?
Mayweed (Coleostephus myconis) belongs to the Asteraceae family within the Coleostephus genus. Mayweed is also known as Field Marigold, Chrysanthemum myconis, Matricaria myconis.
Mayweed displays a low rosette, spreading growth habit, reaching up to tall with a spread of approximately . Mayweed produces small daisy-like flowers in shades of yellow and white.
What Light Does the Mayweed Need?
Mayweed thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Soil Mix Works Best for a Mayweed?
Well-draining sandy loam with added organic matter. Good drainage is essential for Mayweed to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Mayweed?
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 Mayweed?
Mayweed can be propagated through seeds, division of clumps.
Is the Mayweed Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Mayweed, 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 Mayweed?
Mayweed is susceptible to aphids, whiteflies, 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.
Keep exploring plants
Mayweed 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 Coleostephus genus — compare its care with other Coleostephus species on PlantoScan.
Coleostephus is part of the Asteraceae plant family — browse all Asteraceae genera and species.
Mayweed 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: Coleostephus myconis (L.) Cass., family Asteraceae (first published in Dict. Sci. Nat., ed. 2, 41: 43 (1826)) — World Flora Online record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Mayweed, 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.
- Photo: Hectonichus, CC BY-SA 3.0, Wikimedia Commons — original.
- 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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