Howell's Thelypody Plant Care
Thelypodium howellii S.Watson
Updated · Sources · How we source care data
Thelypodium howellii, the Howell's thelypody or Howell's thelypodium, is a rare plant of the Western United States. It is endemic to a relatively small area on the borders of three western States: Oregon, Nevada, and California.
Full sun to partial shade
At a glance
How do you care for Howell's Thelypody?
Howell's Thelypody grows best in full sun to partial shade.
Where Is the Howell's Thelypody Native To?
What Is the Howell's Thelypody?
Howell's Thelypody (Thelypodium howellii) belongs to the Brassicaceae family within the Thelypodium genus. Howell's Thelypody is native to a relatively small area on the borders of three western States: Oregon, Nevada, and California.
Howell's Thelypody displays a low rosette, spreading growth habit, reaching up to tall with a spread of approximately . Howell's Thelypody produces small white or purple flowers in clusters.
What Light Does the Howell's Thelypody Need?
Howell's Thelypody thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Soil Mix Works Best for a Howell's Thelypody?
Well-draining sandy loam with added organic matter. Good drainage is essential for Howell's Thelypody to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Howell's Thelypody?
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 Howell's Thelypody?
Howell's Thelypody can be propagated through seeds, division. Similar propagation techniques also apply to short-fruited thelypody plant care, which shares the same genus.
Is the Howell's Thelypody Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Howell's Thelypody, 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 Howell's Thelypody?
Howell's Thelypody 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
Howell's Thelypody 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 Thelypodium genus — compare its care with other Thelypodium species on PlantoScan.
Thelypodium is part of the Brassicaceae plant family — browse all Brassicaceae genera and species.
Howell's Thelypody thrives in bright light and direct sun — see other bright-light plants.
More Thelypodium Species
Other Thelypodium species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Thelypodium howellii S.Watson, family Brassicaceae (first published in Proc. Amer. Acad. Arts 21: 445 (1886)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Howell's Thelypody, 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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