Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Liliaceae

Genus:

Calochortus

Species:

Calochortus umpquaensis

USDA Symbol:

CAUM5

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Geophyte

Height:

30 cm

Light Requirements:

Full Sun

Drought Tolerance:

Medium

Bloom Months:

may,jun,jul

Bloom Colors:

white, cream, yellow

Garden & Ecology Notes

Wildlife Value:

pollinators

Deer Resistant:

Yes

Soil Requirements

Soil Type:

rocky, well-drained, nutrient-poor soil

pH:

5.5 - 7.0 (slightly acidic to neutral)

Drainage:

excellent drainage required

Moisture:

dry to moderate

Notes:

native to serpentine soils in the Umpqua region

Propagation & Germination

Stratification:

Cold/moist stratification required — 60–90 days

Germination Time:

14–60 days

Notes:

Seeds require cold-moist stratification and may show erratic germination. Best sown in fall for natural stratification.

The above propagation data sourced from Claude AI