Photo: FabPublic domainvia Wikimedia Commons
Grassleaf Coneflower Plant Care
Rudbeckia graminifolia (Torr. & A.Gray) C.L.Boynton & Beadle
Updated · Sources · How we source care data
Rudbeckia graminifolia, the grassleaf coneflower, is a species of flowering plant. It grows in parts of the Florida Panhandle. It produces tubular disc flowers, which go on to form seeds and ray flowers. The flowering plants have been spotted in wet roadside ditches.
Every 7–10 days
Full sun to partial shade
60–80°F
40–60%
At a glance
How do you care for Grassleaf Coneflower?
Water Grassleaf Coneflower every 7–10 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 60–80°F (16–27°C) and 40–60% humidity. Fertilize it every 6 months during the growing season.
What Is the Grassleaf Coneflower?
Grassleaf Coneflower (Rudbeckia graminifolia) belongs to the Asteraceae family within the Rudbeckia genus. Grassleaf Coneflower is also known as Echinacea atrorubens.
Grassleaf Coneflower displays a clump-forming perennial growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Grassleaf Coneflower produces bright yellow or orange daisy-like flowers with dark centers.
Leaf size: approximately 6 inches.
How Often Should You Water a Grassleaf Coneflower?
Rudbeckia graminifolia requires watering every 7–10 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 7–10 days
Let soil partially dry between waterings
What Light Does the Grassleaf Coneflower Need?
Grassleaf Coneflower thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Grassleaf Coneflower Prefer?
Rudbeckia graminifolia grows best at temperatures of 60–80°F. Grassleaf Coneflower prefers humidity levels of 40–60%.
Temperature
60–80°F
Humidity
40–60%
What Soil Mix Works Best for a Grassleaf Coneflower?
Well-draining, fertile soil with a mix of compost and perlite. Good drainage is essential for Grassleaf Coneflower to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Grassleaf Coneflower?
Feed Grassleaf Coneflower 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 Grassleaf Coneflower?
Divide and replant every 3-4 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 Grassleaf Coneflower?
Grassleaf Coneflower can be propagated through seeds, division of clumps. Similar propagation techniques also apply to orange coneflower plant care, which shares the same genus.
Is the Grassleaf Coneflower Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Grassleaf Coneflower, 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 Grassleaf Coneflower?
Grassleaf Coneflower is susceptible to aphids, slugs, snails. 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 Grassleaf Coneflower Need?
Grassleaf Coneflower grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. In cooler regions, grow Grassleaf Coneflower as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Grassleaf Coneflower 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 Rudbeckia genus — compare its care with other Rudbeckia species on PlantoScan.
Rudbeckia is part of the Asteraceae plant family — browse all Asteraceae genera and species.
Grassleaf Coneflower thrives in bright light and direct sun — see other bright-light plants.
More Rudbeckia Species
Other Rudbeckia species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Rudbeckia graminifolia (Torr. & A.Gray) C.L.Boynton & Beadle, family Asteraceae (first published in Biltmore Bot. Stud. 1(1): 12 (1901)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Grassleaf Coneflower, 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: Fab, Public domain, Wikimedia Commons — original.
- 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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