Macoun's Cudweed

Pseudognaphalium macounii

Native to:
Canada, Mexico, Prince Edward I., United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Asteraceae
Genus:
Pseudognaphalium
Species:
Pseudognaphalium macounii
USDA Symbol:
PSMA11

Growth Characteristics

Life Cycle:
Annual | Biennial
Growth Habit:
Forb/herb
Height:
90 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
jul,aug,sep
Bloom Colors:
white, cream

Wildlife Benefits

Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)
Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Host Plant for Caterpillars

Oidaematophorus phoebus

Garden & Ecology Notes

Wildlife Value:
butterflies, small birds
Deer Resistant:
Yes
Fragrant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Biennial or short-lived perennial that often colonizes disturbed and post-fire sites; reseeds readily after burns.

Soil Requirements

Soil Type:
sandy, well-drained, nutrient-poor soil
pH:
5.5 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
prefers open, sunny locations

Propagation & Germination

Stratification:
None required
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