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Dollarweed (Pennywort)

Hydrocotyle umbellata

A shiny, round-leafed weed that thrives in soggy soil and often signals overwatering or poor drainage.

Dollarweed (Pennywort)
Photo: (c) Nathan Aaron, some rights reserved (CC BY) (via iNaturalist)

What it looks like

Small, shiny, silver-dollar-shaped leaves with scalloped edges. The stem attaches right in the center of the leaf, like a tiny umbrella. It sends up small white flower clusters and spreads in creeping mats close to the ground.

Often mistaken for: Dichondra and lawn pennywort (much smaller, scalloped leaves with the stem at the edge, not the center)

When it shows up in the Triangle

Grows actively from late spring through fall in the Triangle.

Where you’ll see it

Shows up in home lawns and landscape beds, especially in low, wet, or poorly drained spots.

What you can do

  • Cut back on watering frequency - let the soil dry out between waterings
  • Improve drainage in low or soggy areas of the yard
  • Check for and fix irrigation heads that are overwatering one spot
  • Aerate compacted soil so water can move through it better
  • Pull small patches by hand before they spread into mats
Related

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