Photo: Stan ShebsCC BY-SA 3.0via Wikimedia Commonsresized / cropped
Cutleaf Tansy Plant Care
Trichoptilium incisum (A.Gray) A.Gray
Updated · Sources · How we source care data
Trichoptilium is a monotypic genus containing the single species Trichoptilium incisum, which is known by the common names yellowdome and yellowhead. This is a plant in the daisy family which is native to the Mojave and Sonoran Deserts of the United States and Mexico.
Every 7–10 days
Full sun to partial shade
60–80°F
40–70%
At a glance
How do you care for Cutleaf Tansy?
Water Cutleaf Tansy every 7–10 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 60–80°F (16–27°C) and 40–70% humidity. Fertilize it every 6 months during the growing season.
What Is the Cutleaf Tansy?
Cutleaf Tansy (Trichoptilium incisum) belongs to the Asteraceae family within the Trichoptilium genus. Cutleaf Tansy is also known as Psathyrotes incisa.
Cutleaf Tansy displays a clumping perennial herb growth habit, reaching up to 1.5 ft tall with a spread of approximately 1.5 ft. Cutleaf Tansy produces small yellow daisy-like flowers in clusters.
Leaf size: approximately 3 inches.
How Often Should You Water a Cutleaf Tansy?
Trichoptilium incisum requires watering every 7–10 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 7–10 days
Let soil partially dry between waterings
What Light Does the Cutleaf Tansy Need?
Cutleaf Tansy thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Cutleaf Tansy Prefer?
Trichoptilium incisum grows best at temperatures of 60–80°F. Cutleaf Tansy prefers humidity levels of 40–70%.
Temperature
60–80°F
Humidity
40–70%
What Soil Mix Works Best for a Cutleaf Tansy?
Well-draining sandy loam with added organic matter. Good drainage is essential for Cutleaf Tansy to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Cutleaf Tansy?
Feed Cutleaf Tansy every 6 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 6 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 Cutleaf Tansy?
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 Cutleaf Tansy?
Cutleaf Tansy can be propagated through seeds, division of root clumps.
Is the Cutleaf Tansy Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Cutleaf Tansy, 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 Cutleaf Tansy?
Cutleaf Tansy is susceptible to aphids, whiteflies, spider mites. 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 Cutleaf Tansy Need?
Cutleaf Tansy grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. In cooler regions, grow Cutleaf Tansy as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Cutleaf Tansy 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 Trichoptilium genus — compare its care with other Trichoptilium species on PlantoScan.
Trichoptilium is part of the Asteraceae plant family — browse all Asteraceae genera and species.
Cutleaf Tansy 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: Trichoptilium incisum (A.Gray) A.Gray, family Asteraceae (first published in Rep. U.S. Mex. Bound., Bot. [Emory] 97. 1859 [1-20 Apr 1859]) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Cutleaf Tansy, 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: Stan Shebs, CC BY-SA 3.0, Wikimedia Commons — original.
- Hardiness zone: USDA Zone 13a, calculated from the plant's minimum temperature.
- 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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