A picture of a Horseweed

Horseweed

Erigeron canadensis

Also known as

Canadian Horseweed, Canadian Fleabane, Butterweed, Marestail, Coltstail

Full Sun
Easy care
Moderate watering
Frost Hardy

H5

RHS hardiness

-15°C

Minimum temperature

Expected size

Height
Spread

1.5m

Max

50cm

50cm

Min

20cm

6 months to reach maturity

Flowering

  • spring
  • summer
  • autumn
  • winter

This plant has a mild fragrance

More images of Horseweed

A photo of Horseweed
A photo of Horseweed
A photo of Horseweed
A photo of Horseweed

Horseweed Overview

Erigeron canadensis is a native North American plant that has spread throughout the temperate areas of Europe, Asia and Australia. This annual plant is considered a weed, able to grow in urban settings as well as arable. It is believed to be the first plant to develop a resistance to glyphosate.

Common problems with Horseweed

Generally pest and disease free.

    How to harvest Horseweed

    Generally not harvested.

    How to propagate Horseweed

    Seed

    Other uses of Horseweed

    Historically the Zuni people of America used the plant as part of their herbal remedies for sore throats and dysentery.