Apiaceae
Lomatium simplex
Lomatium simplex
Also known as Peucedanum simplex, Cogswellia simplex
Flowering Plants · Native Plants · Native · Wildflower · Apiaceae · Pollinator · Intermountain West · Rocky Soil · Xeriscape · Lomatium · Ethnobotanical · Spring Blooming
Lomatium simplex is a native western North American wildflower in the carrot family, producing clusters of small yellow flowers beloved by native pollinators in spring. It grows best in well-draining, rocky or gravelly soils with part shade and requires little supplemental water once established. This specialist plant suits native and wildflower gardens in the Intermountain West and can be slow to establish from seed, so patience is rewarded with a long-lived, low-maintenance perennial.
Growing conditions
The details behind the basics
- Daily light
- 5 hours
- Watering
- Water deeply but infrequently, allowing soil to dry between waterings; avoid overwatering in heavy soils · Every 10-14 days
- Maintenance
- Moderate
- Soil
- loam
- Soil pH
- 6.5–8.8
- Temperature
- -25°F to 95°F
- Cycle
- Perennial
- Propagation
- Seed, Division, Cutting
Hardiness
USDA 4b-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 4 ft
- Spread
- 4 ft
- Spacing
- 12 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- Yes
- Foliage
- Fine
Ecology & origin
Where it belongs and what it brings
- Native to
- Alberta, Arizona, British Columbia, Idaho, Montana, Nevada, Oregon, Utah, Washington, Wyoming
- Attracts
- Bees, Butterflies, Moths
Sources: trefle, usda
More Lomatium
Related plants from the same genus
Lomatium dissectum
Lomatium dissectum
Partial Sun · Moderate · Fast
Cous-root desert-parsley
Lomatium cous
Full Sun · Moderate · Fast
Canby's biscuitroot
Lomatium canbyi
Partial Sun · Moderate · Moderate
Lomatium triternatum var. macrocarpum
Lomatium triternatum var. macrocarpum
Partial Sun · Moderate · Moderate
Buy this plant
No nurseries currently list it
No nursery lists Lomatium simplex right now.