Photo: JulcataiCC BY-SA 3.0via Wikimedia Commonsresized / cropped
Crepis angustifolia Plant Care
Hieracium tectorum Hornem.
Updated · Sources · How we source care data
This plant is easily recognized by its long, narrow leaves with toothed edges and a silver-green color. Hieracium tectorum originates from Europe and Asia, attracting plant collectors with its delicate, daisy-like yellow flowers and ability to thrive in various growing conditions.
Every 3–7 days
Full sun to partial shade
60–75°F
50–70%
At a glance
How do you care for Crepis angustifolia?
Water Crepis angustifolia every 3–7 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 50–70% humidity. Fertilize it every month during the growing season.
What Is the Crepis angustifolia?
Crepis angustifolia (Hieracium tectorum) belongs to the Asteraceae family within the Hieracium genus. Crepis angustifolia is native to Siberia before being introduced to Canada in 1890, the narrowleaf hawksbeard is an invasive species. Crepis angustifolia is also known as Crepis campestris, Crepis dioscoridis, Crepis lachenalii.
Crepis angustifolia displays a low rosette, clumping growth habit, reaching up to 1 ft tall with a spread of approximately . Crepis angustifolia produces small yellow clustered flowers in flat-topped clusters.
Leaf size: approximately 3 inches.
How Often Should You Water a Crepis angustifolia?
Hieracium tectorum requires watering every 3–7 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 3–7 days
Let soil partially dry between waterings
What Light Does the Crepis angustifolia Need?
Crepis angustifolia thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Crepis angustifolia Prefer?
Hieracium tectorum grows best at temperatures of 60–75°F. Crepis angustifolia prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
60–75°F
Humidity
50–70%
What Soil Mix Works Best for a Crepis angustifolia?
Well-draining loamy soil with added organic matter. Good drainage is essential for Crepis angustifolia to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Crepis angustifolia?
Feed Crepis angustifolia every month 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 month
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Crepis angustifolia?
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 Crepis angustifolia?
Crepis angustifolia can be propagated through seeds, division of offsets. Similar propagation techniques also apply to white-flowered hawkweed plant care, which shares the same genus.
Is the Crepis angustifolia Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Crepis angustifolia, 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 Crepis angustifolia?
Crepis angustifolia is susceptible to aphids, spider mites, leaf miners. 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 Crepis angustifolia Need?
Crepis angustifolia grows outdoors in USDA Zone 2a – 8b. It survives winters down to planting zone 2a. Crepis angustifolia is native to Siberia before being introduced to Canada in 1890, the narrowleaf hawksbeard is an invasive species.
Hardiness Zone
Zone 2a – 8b
Keep exploring plants
Crepis angustifolia 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 Hieracium genus — compare its care with other Hieracium species on PlantoScan.
Hieracium is part of the Asteraceae plant family — browse all Asteraceae genera and species.
Crepis angustifolia thrives in bright light and direct sun — see other bright-light plants.
More Hieracium Species
Other Hieracium species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Hieracium tectorum Hornem., family Asteraceae (first published in Hort. Bot. Hafn. : 766 (1815)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Crepis angustifolia, 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: Julcatai, CC BY-SA 3.0, Wikimedia Commons — original.
- Hardiness zone: USDA Zone 2a – 8b, 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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