Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Apiaceae

Genus:

Ptilimnium

Species:

Ptilimnium costatum

USDA Symbol:

PTCO

Growth Characteristics

Life Cycle:

Annual

Growth Habit:

Forb/herb

Height:

100 cm

Drought Tolerance:

Low

Bloom Months:

may,jun,jul,aug

Bloom Colors:

white

Wildlife Benefits

Bees:

★☆☆☆☆ Documented bee visitation (GBIF)

Garden & Ecology Notes

Wildlife Value:

bees, beneficial insects

Deer Resistant:

Yes

Propagation & Germination

Stratification:

Cold/moist stratification required — 60–90 days

Germination Time:

14–42 days

Notes:

Seeds require light for germination. Surface sow and keep consistently moist.

The above propagation data sourced from Claude AI