Western Bittercress Plant Care
Cardamine occidentalis Howell
Updated · Sources · How we source care data
Cardamine occidentalis is a species of Cardamine known by the common name big western bittercress. It is native to western North America from Alaska to northwestern California, where it grows in moist mountain habitats.
Partial shade to full shade
At a glance
How do you care for Western Bittercress?
Western Bittercress grows best in partial shade to full shade.
Where Is the Western Bittercress Native To?
What Is the Western Bittercress?
Western Bittercress (Cardamine occidentalis) belongs to the Brassicaceae family within the Cardamine genus. Western Bittercress is native to western North America from Alaska to northwestern California.
Western Bittercress displays a low-growing, spreading perennial growth habit, reaching up to tall with a spread of approximately . Western Bittercress produces small, delicate white or pink flowers in clusters.
What Light Does the Western Bittercress Need?
Western Bittercress thrives in partial shade to full shade. Avoid placing Western Bittercress in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Partial shade to full shade
What Soil Mix Works Best for a Western Bittercress?
Moist, well-draining soil rich in organic matter. Good drainage is essential for Western Bittercress to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Western Bittercress?
Divide and 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 Western Bittercress?
Western Bittercress can be propagated through seeds, division. Similar propagation techniques also apply to alpine bittercress plant care, which shares the same genus.
Is the Western Bittercress Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Western Bittercress, 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 Western Bittercress?
Western Bittercress 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.
Keep exploring plants
Western Bittercress 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 Cardamine genus — compare its care with other Cardamine species on PlantoScan.
Cardamine is part of the Brassicaceae plant family — browse all Brassicaceae genera and species.
Western Bittercress copes with lower light than most plants — browse the full list of low-light plants.
More Cardamine Species
Other Cardamine species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Cardamine occidentalis Howell, family Brassicaceae (first published in Fl. N.W. Amer. 1: 50 (1897)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Western Bittercress, 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.
- 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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