Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Lamiaceae

Genus:

Pycnanthemum

Species:

Pycnanthemum montanum

USDA Symbol:

PYMO2

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Forb/herb

Height:

90 cm

Light Requirements:

Full Sun

Drought Tolerance:

Medium

Bloom Months:

jul,aug,sep

Bloom Colors:

white, lavender

Wildlife Benefits

Bees:

★☆☆☆☆ Documented bee visitation (GBIF)

Butterflies & Moths:

★☆☆☆☆ Documented Lepidoptera association (GBIF)

Keystone Species Ranking

Caterpillar Keystone:

★☆☆☆☆ Butterfly & moth species supported by this genus (NWF)

Garden & Ecology Notes

Wildlife Value:

bees, butterflies, beneficial insects

Deer Resistant:

Yes

Fragrant:

Yes

Fire Ecology:

Fire adapted — tolerates or benefits from fire

Fire Notes:

Resprouts from rootstock following fire; benefits from periodic burning to reduce competition.

Soil Requirements

Soil Type:

rocky, well-drained loamy soil

pH:

5.5 - 7.0 (slightly acidic to neutral)

Drainage:

excellent drainage required

Moisture:

dry to moderate

Notes:

prefers open, sunny habitats

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–60 days

Germination Time:

14–30 days

Notes:

Seeds require light for germination; surface sow and do not cover.

The above propagation data sourced from Claude AI