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Yellow Hatpins

Syngonanthus flavidulus

Last reviewed: August 2026

Yellow Hatpins (Syngonanthus flavidulus)
Photo: Alan Weakley / Wikimedia Commons (CC0)

Toxicity unknown

Yellow Hatpins (Syngonanthus flavidulus) 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

4"–12" H × 2"–6" W

Bloom

Jun, Jul, Aug, Sep

Native to

AL, FL, GA, NC and 1 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

Yellow hatpins is a small annual wildflower that produces distinctive golden-yellow globe-shaped flower heads on slender stems. The compact plant forms neat clumps and blooms throughout the summer and fall months. It thrives in full sun conditions with moderate water requirements.

In an HOA neighborhood

Yellow Hatpins 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.

  • Very small size may appear sparse in formal settings
  • Annual nature requires replanting each year
  • Unfamiliar wildflower appearance may seem weedy to HOAs

Wildlife value

While specific pollinator data is limited, the small globe flowers likely attract native bees and other small pollinators during its extended blooming period from June through September.

Common questions

How much sun does Yellow Hatpins need?
Yellow Hatpins grows best in full sun conditions.
When does Yellow Hatpins bloom?
Yellow Hatpins blooms in June, July, August, and September.
Where is Yellow Hatpins native?
Yellow Hatpins (Syngonanthus flavidulus) is native to AL, FL, GA, NC and 1 more states, per vouchered herbarium specimen records and regional native plant society lists.
Is Yellow Hatpins HOA-friendly?
Yellow Hatpins 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 vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

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

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