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Marsh Beggarticks

Bidens trichosperma

Last reviewed: August 2026

Marsh Beggarticks (Bidens trichosperma)
Photo: Robert H. Mohlenbrock. USDA NRCS. 1995. Northeast wetland flora: Field office guide to plant species. Northeast National Technical Center, Chester. Courtesy of USDA NRCS Wetland Science Institute. / Wikimedia Commons (Public domain)

Toxicity unknown

Marsh Beggarticks (Bidens trichosperma) 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

full sun

Water

medium

Size

12"–48" H × 6"–24" W

Bloom

Jul, Aug, Sep

Native to

AL, AR, CT, DE and 25 more states

Pollinators

bees, butterflies, beetles

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 452 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

Central Great PlainsNorthwestern Glaciated PlainsNorthwestern Great PlainsGreat PlainsWestern Corn Belt PlainsNorthern Lakes and ForestsNorth Central Hardwood ForestsSoutheastern Wisconsin Till PlainsCentral Corn Belt PlainsEastern Corn Belt PlainsSouthern Michigan/Northern Indiana Drift PlainsHuron/Erie Lake PlainsNortheastern Coastal ZoneMiddle Atlantic Coastal PlainNorthern PiedmontSoutheastern PlainsInterior PlateauInterior River Valleys and HillsAtlantic Coastal Pine Barrens

Bidens trichosperma, commonly known as tickseed sunflower, produces bright yellow daisy-like flowers from summer through fall. This native annual grows 1-4 feet tall and thrives in full sun with moderate water needs. The cheerful blooms provide excellent late-season color when many other plants are fading.

In an HOA neighborhood

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

Works well in: backyard only.

  • Can appear weedy and unkempt to untrained eyes
  • Seeds readily and may spread beyond intended areas
  • Dies back completely in winter leaving bare spots

Wildlife value

This plant is a pollinator magnet, attracting bees, butterflies, and beetles with its abundant nectar-rich flowers. The seeds also provide food for songbirds in late fall and winter.

Common questions

How much sun does Marsh Beggarticks need?
Marsh Beggarticks grows best in full sun conditions.
When does Marsh Beggarticks bloom?
Marsh Beggarticks blooms in July, August, and September.
Where is Marsh Beggarticks native?
Marsh Beggarticks (Bidens trichosperma) is native to AL, AR, CT, DE and 25 more states, per the World Checklist of Vascular Plants (Kew).
What pollinators does Marsh Beggarticks attract?
Marsh Beggarticks draws bees, butterflies, and beetles.
Is Marsh Beggarticks HOA-friendly?
Marsh Beggarticks 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.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

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