Elecampane Plant Care
Inula helenium Asso
Updated · Sources · How we source care data
Elecampane (Inula helenium), pronounced and also called horse-heal or elfdock, is a widespread plant species in the sunflower family Asteraceae. It is native to Eurasia from Spain to Xinjiang province in western China, and naturalized in parts of North America.
Every 7–10 days
Full sun to partial shade
60–75°F
40–60%
At a glance
How do you care for Elecampane?
Water Elecampane 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 60–75°F (16–24°C) and 40–60% humidity. Fertilize it every 6 months during the growing season.
Where Is the Elecampane Native To?
What Is the Elecampane?
Elecampane (Inula helenium) belongs to the Asteraceae family within the Inula genus. Elecampane is native to Eurasia from Spain to Xinjiang province in western China, and naturalized in parts of North America. Elecampane is also known as Elfwort, Scabwort, Velvet dock.
Elecampane displays an upright, bushy perennial growth habit, reaching up to 2 ft tall with a spread of approximately 1.5 ft. Elecampane produces bright yellow daisy-like flowers in clusters.
Leaf size: approximately 4 inches.
How Often Should You Water a Elecampane?
Inula helenium 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 Elecampane Need?
Elecampane thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Elecampane Prefer?
Inula helenium grows best at temperatures of 60–75°F. Elecampane prefers humidity levels of 40–60%.
Temperature
60–75°F
Humidity
40–60%
What Soil Mix Works Best for a Elecampane?
Well-draining loamy soil with added compost for nutrients. Good drainage is essential for Elecampane to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Elecampane?
Feed Elecampane 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 Elecampane?
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 Elecampane?
Elecampane can be propagated through seeds, division of root ball.
Is the Elecampane Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Elecampane, 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 Elecampane?
Elecampane 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 Elecampane Need?
Elecampane grows outdoors in USDA Zone 3a – 9b. It survives winters down to planting zone 3a. Elecampane is native to Eurasia from Spain to Xinjiang province in western China, and naturalized in parts of North America.
Hardiness Zone
Zone 3a – 9b
Keep exploring plants
Elecampane 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 Inula genus — compare its care with other Inula species on PlantoScan.
Inula is part of the Asteraceae plant family — browse all Asteraceae genera and species.
Elecampane 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: Inula helenium Asso, family Asteraceae (first published in Syn. Stirp. Aragon. : 122 (1779)) — World Flora Online record, IPNI name record, Wikidata.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Elecampane, 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 3a – 9b, estimated from the plant's typical growing conditions.
- 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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