Horseweed
Erigeron canadensis
Family: AsteraceaeNative: North America and Central AmericaIdentified: Apr 14, 2026
A tall, upright annual herbaceous plant with narrow, lance-shaped leaves arranged alternately along a central bristly stem. It produces dense clusters of very small, white or greenish flower heads at the top.
Learn more about Horseweed in the encyclopedia →Care instructions
This is often considered a weed and requires little care. It thrives in full sun and well-drained soil. It is highly adaptable and can grow in disturbed sites, gardens, and cracks in pavement. To control it, pull or mow before it goes to seed.