Lomatium latilobum Plant Care
Lomatium latilobum (Rydb.) Mathias
Updated · Sources · How we source care data
Lomatium latilobum is a threatened species of flowering plant in the carrot family, known by the common names Canyonlands lomatium and Canyonlands biscuitroot. It is native to an area straddling the border between Utah and Colorado in the United States, where several of its few occurrences are within Arches National Park and Colorado National Monument.
Every 7–14 days
Full sun to partial shade
50–80°F
40–60%
At a glance
How do you care for Lomatium latilobum?
Water Lomatium latilobum 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 50–80°F (10–27°C) and 40–60% humidity. Fertilize it every 6 months during the growing season.
Where Is the Lomatium latilobum Native To?
What Is the Lomatium latilobum?
Lomatium latilobum (Lomatium latilobum) belongs to the Apiaceae family within the Lomatium genus. Lomatium latilobum is native to an area straddling the border between Utah and Colorado in the United States.
Lomatium latilobum displays a clumping perennial herb growth habit, reaching up to 1.5 ft tall with a spread of approximately 1 ft. Lomatium latilobum produces small clusters of yellow flowers in umbels.
Leaf size: approximately 4 inches.
How Often Should You Water a Lomatium latilobum?
Lomatium latilobum 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 Lomatium latilobum Need?
Lomatium latilobum thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Lomatium latilobum Prefer?
Lomatium latilobum grows best at temperatures of 50–80°F. Lomatium latilobum prefers humidity levels of 40–60%.
Temperature
50–80°F
Humidity
40–60%
What Soil Mix Works Best for a Lomatium latilobum?
Well-draining sandy soil with good organic content. Good drainage is essential for Lomatium latilobum to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Lomatium latilobum?
Feed Lomatium latilobum 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 Lomatium latilobum?
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 Lomatium latilobum?
Lomatium latilobum can be propagated through seeds, division of roots. Similar propagation techniques also apply to lomatium plant care, which shares the same genus.
Is the Lomatium latilobum Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Lomatium latilobum, 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 Lomatium latilobum?
Lomatium latilobum is susceptible to aphids, spider mites, powdery mildew. 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 Lomatium latilobum Need?
Lomatium latilobum grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Lomatium latilobum is native to an area straddling the border between Utah and Colorado in the United States. In cooler regions, grow Lomatium latilobum as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Lomatium latilobum 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 Lomatium genus — compare its care with other Lomatium species on PlantoScan.
Lomatium is part of the Apiaceae plant family — browse all Apiaceae genera and species.
Lomatium latilobum thrives in bright light and direct sun — see other bright-light plants.
More Lomatium Species
Other Lomatium species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Lomatium latilobum (Rydb.) Mathias, family Apiaceae (first published in Ann. Missouri Bot. Gard. 25: 281 (1938 publ. 1937)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Lomatium latilobum, 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.
- Hardiness zone: USDA Zone 12a, 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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