Trans-Pecos Horseweed

Laennecia filaginoides

Native to:
Colombia, Guatemala, Mexico, Peru, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Asteraceae
Genus:
Laennecia
Species:
Laennecia filaginoides
USDA Symbol:
LAFI

Growth Characteristics

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

Garden & Ecology Notes

Deer Resistant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Colonizes disturbed and burned areas; often appears after fire as an early successional species.

Soil Requirements

Soil Type:
sandy, well-drained, nutrient-poor soil
pH:
6.0 - 8.0 (neutral to slightly alkaline)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to arid and semi-arid regions

Propagation & Germination

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

The above propagation data sourced from Claude AI