Low Smartweed
Persicaria longiseta
Also listed as Polygonum longisetum
Also known as Long-bristled Smartweed, Bristly Lady's Thumb, Oriental Smartweed
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A fast-growing annual smartweed with slender upright stems and small bristly flower clusters. Commonly found in moist disturbed areas and considered a common garden weed in many regions.
Why grow it
Low smartweed establishes quickly in wet or seasonally moist sites where slower-growing perennials may struggle to gain footing. Compared to other annual smartweeds, its compact habit and fine texture make it less coarse, and it produces abundant seed that can support foraging birds and insects. It functions well as a pioneer species in restoration plantings or as a temporary nitrogen-cycling cover in areas awaiting slower woody succession.
Watch out for
The plant's prolific self-seeding means volunteer seedlings will persist in the following season if soil is left undisturbed; plan for either annual removal or acceptance of its reappearance. Because it thrives in consistently moist conditions, it may outcompete nearby plantings in poorly drained spots, so site it deliberately rather than allowing it to spread into cultivated beds.
Overview
- Form
- Growth Rate
- Size
- Dormancy
- Family
- Polygonaceae
Native Range
Eastern Asia
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 fast-growing annual smartweed with slender upright stems and small bristly flower clusters. Commonly found in moist disturbed areas and considered a common garden weed in many regions.
Climate Match for your location
See how well Low Smartweed grows in your area.
Enter your ZIP code and we'll show you how this plant fits your local climate.
Why grow it
Low smartweed establishes quickly in wet or seasonally moist sites where slower-growing perennials may struggle to gain footing. Compared to other annual smartweeds, its compact habit and fine texture make it less coarse, and it produces abundant seed that can support foraging birds and insects. It functions well as a pioneer species in restoration plantings or as a temporary nitrogen-cycling cover in areas awaiting slower woody succession.
Watch out for
The plant's prolific self-seeding means volunteer seedlings will persist in the following season if soil is left undisturbed; plan for either annual removal or acceptance of its reappearance. Because it thrives in consistently moist conditions, it may outcompete nearby plantings in poorly drained spots, so site it deliberately rather than allowing it to spread into cultivated beds.
Overview
- Form
- Growth Rate
- Size
- Dormancy
- Family
- Polygonaceae
Native Range
Eastern Asia
Seasonality
Bloom Season
Season of Interest
Herb
Soft non-woody plants of the field layer.
Succession Role
Tolerances & Soil
Establishment & Care
- Establishment
- Maintenance
- Propagation
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