Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Apiaceae

Genus:

Eryngium

Species:

Eryngium constancei

USDA Symbol:

ERCO39

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Forb/herb

Height:

10 cm

Light Requirements:

Full Sun

Drought Tolerance:

Low

Bloom Months:

jun,jul,aug

Bloom Colors:

white, purple

Wildlife Benefits

Bees:

★☆☆☆☆ Documented bee visitation (GBIF)

Butterflies & Moths:

★☆☆☆☆ Documented Lepidoptera association (GBIF)

Garden & Ecology Notes

Wildlife Value:

bees, butterflies

Deer Resistant:

Yes

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 serpentine soils

Propagation & Germination

Stratification:

Cold/moist stratification required — 60–90 days

Germination Time:

14–42 days

Notes:

Seeds require cold stratification and may germinate erratically. Light may improve germination.

The above propagation data sourced from Claude AI