How much sun does Marsh Horsetail need?

Marsh Horsetail grows best in part shade conditions.

When does Marsh Horsetail bloom?

Marsh Horsetail blooms in May, June, July, August, and September.

Where is Marsh Horsetail native?

Marsh Horsetail (Equisetum palustre) is native to CA, CT, ID, IL and 13 more states, per the World Checklist of Vascular Plants (Kew).

Is Marsh Horsetail HOA-friendly?

Marsh Horsetail takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Marsh Horsetail

Name: Pollinator Patch
Author: Pollinator Patch

Equisetum palustre

Last reviewed: August 2026

Toxicity unknown

Marsh Horsetail (Equisetum palustre) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

part shade

Water

high

Size

6"–24" H × 6"–12" W

Bloom

May, Jun, Jul, Aug, Sep

Native to

CA, CT, ID, IL and 13 more states

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 445 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Browse plants for this ecoregion

Coast Range Puget Lowland Marine West Coast Forest Northwestern Forested Mountains North American Deserts Great Plains Northern Forests Northern Lakes and Forests North Central Hardwood Forests Southern Michigan/Northern Indiana Drift Plains Northeastern Highlands Northeastern Coastal Zone Northern Allegheny Plateau Acadian Plains and Hills Eastern Great Lakes Lowlands

Marsh horsetail is a primitive fern-like plant with distinctive jointed green stems that emerge in spring and persist through fall. It requires consistently moist to wet soil conditions and thrives in partial shade areas where other plants struggle. This ancient plant spreads slowly by underground rhizomes and produces spore-bearing cones rather than flowers.

In an HOA neighborhood

Marsh Horsetail takes more care to keep looking intentional in a front yard. Maintenance level: moderate. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

Unusual prehistoric appearance may look unkempt to conventional tastes
Requires very wet conditions that create maintenance challenges
Can appear sparse or patchy in suboptimal growing conditions

Wildlife value

As a spore-producing plant, marsh horsetail does not attract typical pollinators but provides habitat structure for small wildlife. The dense growth can offer shelter for amphibians and insects in wet garden areas.

Common questions

How much sun does Marsh Horsetail need?: Marsh Horsetail grows best in part shade conditions.
When does Marsh Horsetail bloom?: Marsh Horsetail blooms in May, June, July, August, and September.
Where is Marsh Horsetail native?: Marsh Horsetail (Equisetum palustre) is native to CA, CT, ID, IL and 13 more states, per the World Checklist of Vascular Plants (Kew).
Is Marsh Horsetail HOA-friendly?: Marsh Horsetail takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Ready to grow Marsh Horsetail? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

Add this plant to your garden

iPhone app Android app

Not sure where to start? Take the 2-minute yard quiz