Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Apiaceae

Genus:

Lomatium

Species:

Lomatium attenuatum

USDA Symbol:

LOAT

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Forb/herb

Height:

60 cm

Light Requirements:

Full Sun

Drought Tolerance:

High

Bloom Months:

apr,may,jun

Bloom Colors:

yellow

Wildlife Benefits

Bees:

★☆☆☆☆ Documented bee visitation (GBIF)

Butterflies & Moths:

★☆☆☆☆ Documented Lepidoptera association (GBIF)

Garden & Ecology Notes

Wildlife Value:

bees, butterflies, birds

Deer Resistant:

Yes

Fire Ecology:

Fire adapted — tolerates or benefits from fire

Fire Notes:

Resprouts from taproot following fire; typical of sagebrush-steppe species adapted to periodic fire.

Soil Requirements

Soil Type:

rocky, well-drained, nutrient-poor soil

pH:

6.0 - 7.5 (slightly acidic to neutral)

Drainage:

excellent drainage required

Moisture:

dry to moderate

Notes:

native to mountainous regions with sparse vegetation

Propagation & Germination

Stratification:

Cold/moist stratification required — 60–90 days

Germination Time:

14–60 days

Notes:

Seeds require cold stratification; germination can be erratic. Best sown in fall for natural cold treatment.

The above propagation data sourced from Claude AI