Asthmaweed

Erigeron bonariensis

Native to:
Argentina, Bahamas, Bolivia, Brazil, Chile, Colombia, Costa Rica, Cuba, Dominican Republic, French Guiana, Galápagos, Guatemala, Guyana, Haiti, Jamaica, Juan Fernández Is., Leeward Is., Mexico, Paraguay, Peru, Puerto Rico, Suriname, Trinidad-Tobago, Uruguay, Windward Is.

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Asteraceae
Genus:
Erigeron
Species:
Erigeron bonariensis
USDA Symbol:
COBO

Growth Characteristics

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

Keystone Species Ranking

Caterpillar Keystone:
★★★☆☆ Butterfly & moth species supported by this genus (NWF)
Pollen Specialist Bee Keystone:
★★★★☆ Native pollen specialist bee species supported by this genus (NWF)

Garden & Ecology Notes

Wildlife Value:
small insects
Deer Resistant:
Yes

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:
native to disturbed areas and open fields

Propagation & Germination

Stratification:
None required
Germination Time:
7–21 days
Notes:
Seeds require light for germination; surface sow and do not cover.

The above propagation data sourced from Claude AI