Coastal Mock Bishopweed Plant Care
Ptilimnium costatum Raf.
Updated · Sources · How we source care data
Ptilimnium costatum, commonly called ribbed mock bishopweed or big bishopweed, is a species of flowering plant in the carrot family (Apiaceae). It is native to the southeastern United States.
Full sun to partial shade
At a glance
How do you care for Coastal Mock Bishopweed?
Coastal Mock Bishopweed grows best in full sun to partial shade.
Where Is the Coastal Mock Bishopweed Native To?
What Is the Coastal Mock Bishopweed?
Coastal Mock Bishopweed (Ptilimnium costatum) belongs to the Apiaceae family within the Ptilimnium genus. Coastal Mock Bishopweed is native to the southeastern United States.
Coastal Mock Bishopweed displays a low-growing, spreading perennial growth habit, reaching up to tall with a spread of approximately . Coastal Mock Bishopweed produces small clusters of tiny white flowers in umbels.
What Light Does the Coastal Mock Bishopweed Need?
Coastal Mock Bishopweed thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Soil Mix Works Best for a Coastal Mock Bishopweed?
Well-draining sandy loam with added organic matter for moisture retention. Good drainage is essential for Coastal Mock Bishopweed to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Coastal Mock Bishopweed?
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 Coastal Mock Bishopweed?
Coastal Mock Bishopweed can be propagated through seeds, division of root ball.
Is the Coastal Mock Bishopweed Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Coastal Mock Bishopweed, 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 Coastal Mock Bishopweed?
Coastal Mock Bishopweed is susceptible to aphids, spider mites, caterpillars. 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
Coastal Mock Bishopweed 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 Ptilimnium genus — compare its care with other Ptilimnium species on PlantoScan.
Ptilimnium is part of the Apiaceae plant family — browse all Apiaceae genera and species.
Coastal Mock Bishopweed 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: Ptilimnium costatum Raf., family Apiaceae (first published in Bull. Bot. (Geneva) 1: 217 (1830)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Coastal Mock Bishopweed, 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.
Identify Plants Like the
Coastal Mock Bishopweed 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