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Marsh Parsley

Cyclospermum leptophyllum

Last reviewed: June 2026

Marsh Parsley (Cyclospermum leptophyllum)
Photo: Forest & Kim Starr / Wikimedia Commons (CC BY 3.0)

Light

full sun

Water

medium

Size

4"–16" H × 2"–8" W

Bloom

Apr, May, Jun, Jul

Native to

VA

Pollinators

bees, flies

Marsh parsley is a small annual herb with delicate, finely divided foliage that creates a soft, feathery texture. This species produces tiny white flowers in umbrella-shaped clusters from April through July, adding subtle detail to garden beds.

In an HOA neighborhood

Marsh Parsley 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.

  • Fine foliage can appear weedy to untrained eyes
  • Annual nature means gaps when plants die back
  • Small stature may look unkempt in formal settings

Wildlife value

The small flowers attract beneficial insects including native bees and flies during its extended spring and summer bloom period.

Common questions

How much sun does Marsh Parsley need?
Marsh Parsley grows best in full sun conditions.
When does Marsh Parsley bloom?
Marsh Parsley blooms in April, May, June, and July.
Where is Marsh Parsley native?
Marsh Parsley (Cyclospermum leptophyllum) is native to VA, per the USDA PLANTS Database and regional native plant society lists.
What pollinators does Marsh Parsley attract?
Marsh Parsley draws bees and flies.
Is Marsh Parsley HOA-friendly?
Marsh Parsley 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 USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

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

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