Photo: Thomas KoffelCC BY 4.0via iNaturalistresized / cropped
Round-leaved Pennycress Plant Care
Noccaea rotundifolia Moench
Updated · Sources · How we source care data
This plant is characterized by its unique round, silver-green leaves that form a compact rosette. Originating from Europe and Asia, Noccaea rotundifolia is highly sought after by plant collectors for its attractive foliage and ability to thrive in rocky, well-drained soils.
Every 7–14 days
Full sun to partial shade
55–75°F
40–60%
At a glance
How do you care for Round-leaved Pennycress?
Water Round-leaved Pennycress every 7–14 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 55–75°F (13–24°C) and 40–60% humidity. Fertilize it every 2 months during the growing season.
What Is the Round-leaved Pennycress?
Round-leaved Pennycress (Noccaea rotundifolia) belongs to the Brassicaceae family within the Noccaea genus. Round-leaved Pennycress is native to the Alps, ranging from eastern France to Slovenia.
Round-leaved Pennycress displays a low rosette, spreading growth habit, reaching up to 1 ft tall with a spread of approximately 1 ft. Round-leaved Pennycress produces small clusters of white or yellow flowers.
Leaf size: approximately 3 inches.
How Often Should You Water a Round-leaved Pennycress?
Noccaea rotundifolia requires watering every 7–14 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 7–14 days
Let soil partially dry between waterings
What Light Does the Round-leaved Pennycress Need?
Round-leaved Pennycress thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Round-leaved Pennycress Prefer?
Noccaea rotundifolia grows best at temperatures of 55–75°F. Round-leaved Pennycress prefers humidity levels of 40–60%.
Temperature
55–75°F
Humidity
40–60%
What Soil Mix Works Best for a Round-leaved Pennycress?
Well-draining loamy soil with added organic matter for nutrients. Good drainage is essential for Round-leaved Pennycress to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Round-leaved Pennycress?
Feed Round-leaved Pennycress every 2 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 2 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 Round-leaved Pennycress?
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 Round-leaved Pennycress?
Round-leaved Pennycress can be propagated through seeds, division. Similar propagation techniques also apply to thlaspi montanum plant care, which shares the same genus.
Is the Round-leaved Pennycress Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Round-leaved Pennycress, 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 Round-leaved Pennycress?
Round-leaved Pennycress is susceptible to aphids, cabbage worms, flea beetles. 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 Round-leaved Pennycress Need?
Round-leaved Pennycress grows outdoors in USDA Zone 4a – 7b. It survives winters down to planting zone 4a. Round-leaved Pennycress is native to the Alps, ranging from eastern France to Slovenia.
Hardiness Zone
Zone 4a – 7b
Keep exploring plants
Round-leaved Pennycress 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 Noccaea genus — compare its care with other Noccaea species on PlantoScan.
Noccaea is part of the Brassicaceae plant family — browse all Brassicaceae genera and species.
Round-leaved Pennycress thrives in bright light and direct sun — see other bright-light plants.
More Noccaea Species
Other Noccaea species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Noccaea rotundifolia Moench, family Brassicaceae (first published in Suppl. Meth. : 89 (1802)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Round-leaved Pennycress, 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: Thomas Koffel, CC BY 4.0, iNaturalist — original.
- Hardiness zone: USDA Zone 4a – 7b, 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.
Identify Plants Like the
Round-leaved Pennycress 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