Salmon-flowered lomatium Plant Care

Lomatium salmoniflorum (J.M.Coult. & Rose) Mathias & Constance

Updated · Sources · How we source care data

Lomatium salmoniflorum is a perennial herb native to the northwest United States. In February and March one to nineteen umbels bloom, each with up to 300 flowers.

🌱Herbs
Water

Every 7–14 days

Light

Full sun to partial shade

Temp

50–80°F

Humidity

40–60%

At a glance

How do you care for Salmon-flowered lomatium?

Water Salmon-flowered lomatium 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 Salmon-flowered lomatium Native To?

Native range1 country

What Is the Salmon-flowered lomatium?

Salmon-flowered lomatium (Lomatium salmoniflorum) belongs to the Apiaceae family within the Lomatium genus. Salmon-flowered lomatium is native to the northwest United States. Salmon-flowered lomatium is also known as Salmon-flowered biscuitroot.

Salmon-flowered lomatium displays a clumping perennial herb growth habit, reaching up to 1.5 ft tall with a spread of approximately 1 ft. Salmon-flowered lomatium produces small clusters of yellow flowers in umbels.

Leaf size: approximately 4 inches.

How Often Should You Water a Salmon-flowered lomatium?

Lomatium salmoniflorum 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 Salmon-flowered lomatium Need?

Salmon-flowered lomatium thrives in full sun to partial shade.

Light Requirement

Full sun to partial shade

What Temperature and Humidity Does the Salmon-flowered lomatium Prefer?

Lomatium salmoniflorum grows best at temperatures of 50–80°F. Salmon-flowered lomatium prefers humidity levels of 40–60%.

Temperature

50–80°F

Humidity

40–60%

What Soil Mix Works Best for a Salmon-flowered lomatium?

Well-draining sandy soil with good organic content. Good drainage is essential for Salmon-flowered lomatium to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Salmon-flowered lomatium?

Feed Salmon-flowered lomatium 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 Salmon-flowered lomatium?

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 Salmon-flowered lomatium?

Salmon-flowered lomatium can be propagated through seeds, division of roots. Similar propagation techniques also apply to lomatium plant care, which shares the same genus.

Is the Salmon-flowered lomatium Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list Salmon-flowered lomatium, 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 Salmon-flowered lomatium?

Salmon-flowered lomatium 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 Salmon-flowered lomatium Need?

Salmon-flowered lomatium grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Salmon-flowered lomatium is native to the northwest United States. In cooler regions, grow Salmon-flowered lomatium as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 12a

Keep exploring plants

Salmon-flowered lomatium 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.

Salmon-flowered lomatium 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 salmoniflorum (J.M.Coult. & Rose) Mathias & Constance, family Apiaceae (first published in Bull. Torrey Bot. Club 69: 246 (1942)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list Salmon-flowered lomatium, 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.

PlantoScan app icon

Identify Plants Like the
Salmon-flowered lomatium 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.

Download on the App StoreGet it on Google Play

Free

to download

iOS & Android

platforms

Light & dark

mode

100,000+

species