Polymnia johnbeckii Plant Care
Polymnia johnbeckii D.Estes
Updated · Sources · How we source care data
Polymnia johnbeckii, commonly called Beck's leafcup, is a species of flowering plant in the family of Asteraceae. It is a perennial forb found only in Tennessee It has white/yellow flowers.
Every 5–7 days
Full sun to partial shade
60–75°F
40–60%
At a glance
How do you care for Polymnia johnbeckii?
Water Polymnia johnbeckii every 5–7 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 60–75°F (16–24°C) and 40–60% humidity. Fertilize it every 6 months during the growing season.
What Is the Polymnia johnbeckii?
Polymnia johnbeckii (Polymnia johnbeckii) belongs to the Asteraceae family within the Polymnia genus.
Polymnia johnbeckii displays a clumping perennial herb growth habit, reaching up to 2 ft tall with a spread of approximately 1.5 ft. Polymnia johnbeckii produces small yellow composite flowers in dense clusters.
Leaf size: approximately 6 inches.
How Often Should You Water a Polymnia johnbeckii?
Polymnia johnbeckii requires watering every 5–7 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 5–7 days
Let soil partially dry between waterings
What Light Does the Polymnia johnbeckii Need?
Polymnia johnbeckii thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Polymnia johnbeckii Prefer?
Polymnia johnbeckii grows best at temperatures of 60–75°F. Polymnia johnbeckii prefers humidity levels of 40–60%.
Temperature
60–75°F
Humidity
40–60%
What Soil Mix Works Best for a Polymnia johnbeckii?
Well-draining loamy soil with added compost for nutrients. Good drainage is essential for Polymnia johnbeckii to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Polymnia johnbeckii?
Feed Polymnia johnbeckii every 6 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 6 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 Polymnia johnbeckii?
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 Polymnia johnbeckii?
Polymnia johnbeckii can be propagated through seeds, division of rhizomes. Similar propagation techniques also apply to canadian polymnia plant care, which shares the same genus.
Is the Polymnia johnbeckii Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Polymnia johnbeckii, 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 Polymnia johnbeckii?
Polymnia johnbeckii is susceptible to aphids, spider mites, whiteflies. 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 Polymnia johnbeckii Need?
Polymnia johnbeckii grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. In cooler regions, grow Polymnia johnbeckii as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Polymnia johnbeckii 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 Polymnia genus — compare its care with other Polymnia species on PlantoScan.
Polymnia is part of the Asteraceae plant family — browse all Asteraceae genera and species.
Polymnia johnbeckii 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: Polymnia johnbeckii D.Estes, family Asteraceae (first published in Syst. Bot. 36(2): 481 (-486; fig. 1, map (2011)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Polymnia johnbeckii, 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
Polymnia johnbeckii 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