Flax-leaved Horseweed
Erigeron bonariensis
Also listed as Conyza bonariensis, Erigeron crispus
Also known as Argentine Fleabane, Flax-leaf Fleabane, Wavy Leaved Fleabane
Climate Match for your location
See how well Flax-leaved Horseweed grows in your area.
Enter your ZIP code and we'll show you how this plant fits your local climate.
A slender, upright annual wildflower with fine, thread-like foliage and small white or pale pink daisy-like flowers. It is drought-tolerant and thrives in disturbed sites, often appearing as a volunteer in gardens.
Why grow it
Flax-leaved horseweed establishes readily in poor, compacted, or disturbed soils where many ornamentals struggle, making it useful for interim colonization or slope stabilization. Its fine texture and airy habit offer a delicate counterpoint to heavier perennials, and it requires minimal inputs once established. Compared to other drought-tolerant annuals, it tolerates both alkaline and acidic conditions without amendment.
Watch out for
This species readily self-seeds and can become numerous if flowers are allowed to mature unchecked in garden settings. Young plants are relatively weak-rooted and benefit from consistent moisture during establishment, despite mature plants' drought tolerance. In regions with dry summers, consistent deadheading extends bloom and prevents excessive volunteer seedlings the following season.
Overview
- Form
- Growth Rate
- Size
- Dormancy
- Family
- Asteraceae
Native Range
South America
Seasonality
Bloom Season
Season of Interest
Herb
Soft non-woody plants of the field layer.
Succession Role
Tolerances & Soil
Establishment & Care
- Establishment
- Maintenance
- Propagation
A slender, upright annual wildflower with fine, thread-like foliage and small white or pale pink daisy-like flowers. It is drought-tolerant and thrives in disturbed sites, often appearing as a volunteer in gardens.
Climate Match for your location
See how well Flax-leaved Horseweed grows in your area.
Enter your ZIP code and we'll show you how this plant fits your local climate.
Why grow it
Flax-leaved horseweed establishes readily in poor, compacted, or disturbed soils where many ornamentals struggle, making it useful for interim colonization or slope stabilization. Its fine texture and airy habit offer a delicate counterpoint to heavier perennials, and it requires minimal inputs once established. Compared to other drought-tolerant annuals, it tolerates both alkaline and acidic conditions without amendment.
Watch out for
This species readily self-seeds and can become numerous if flowers are allowed to mature unchecked in garden settings. Young plants are relatively weak-rooted and benefit from consistent moisture during establishment, despite mature plants' drought tolerance. In regions with dry summers, consistent deadheading extends bloom and prevents excessive volunteer seedlings the following season.
Overview
- Form
- Growth Rate
- Size
- Dormancy
- Family
- Asteraceae
Native Range
South America
Seasonality
Bloom Season
Season of Interest
Herb
Soft non-woody plants of the field layer.
Succession Role
Tolerances & Soil
Establishment & Care
- Establishment
- Maintenance
- Propagation
Similar herbs you might consider:
Enter your ZIP code to see top native species and strong climate fits for you.