Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Asteraceae

Genus:

Achillea

Species:

Achillea ptarmica subsp. macrocephala

USDA Symbol:

ACMA15

Growth Characteristics

Height:

60 cm

Light Requirements:

Full Sun

Drought Tolerance:

Medium

Bloom Months:

jun,jul,aug,sep

Bloom Colors:

white

Keystone Species Ranking

Pollen Specialist Bee Keystone:

★☆☆☆☆ Native pollen specialist bee species supported by this genus (NWF)

Garden & Ecology Notes

Wildlife Value:

bees, butterflies, beneficial insects

Deer Resistant:

Yes

Soil Requirements

Soil Type:

moist, well-drained loamy soil

pH:

5.5 - 7.0 (slightly acidic to neutral)

Drainage:

good drainage required

Moisture:

consistently moist

Notes:

prefers fertile soils in its native range

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–60 days

Germination Time:

7–21 days

Notes:

Seeds require light for germination; surface sow and maintain at 15-20°C. Fresh seed germinates more readily than stored seed.

The above propagation data sourced from Claude AI