Bloomipedia
Swamp candles (Lysimachia terrestris)
Photo: Lynn Harper via iNaturalist · CC0 · resized

Flower profile

Swamp candles

Lysimachia terrestris

Native in the lower 48

Swamp candles is a wildflower that USDA PLANTS lists as native in the lower 48 states. It's on our flower lists for 2 states, and across the U.S. it's most often seen in bloom in June–July.

29states
2of our state lists
6,919U.S. sightings*

*iNaturalist research-grade observations, as of October 17, 2026.

On our lists for: Maine, New Hampshire

Quick look

Lysimachia terrestris is a plant in the family Primulaceae.

  • It belongs to the Primulaceae family. iNaturalist
  • USDA PLANTS describes it as an herb (forb) with a perennial life cycle. USDA PLANTS
  • USDA PLANTS lists it as native in the lower 48 states and records it in 29 states. USDA PLANTS
  • NatureServe lists it as native to Maine and New Hampshire. NatureServe
  • In Maine, most iNaturalist sightings of it in flower come in June–August. iNaturalist
  • In New Hampshire, most iNaturalist sightings of it in flower come in June–July. iNaturalist
  • iNaturalist has 1,024 research-grade sightings of it in Maine, ranking #74 among the 110 flowers on our Maine list. iNaturalist
  • iNaturalist has 883 research-grade sightings of it in New Hampshire, ranking #57 among the 109 flowers on our New Hampshire list. iNaturalist

Swamp candles gift ideas

Handmade swamp candles gifts from independent makers.

When does it bloom?

Flowering records by month across the U.S. (iNaturalist research-grade observations marked “Flowering”) (1,280 records)
Bloom time in each of our 2 states
StateTypePeak bloomSightings*
MaineNativeJune–August1,024
New HampshireNativeJune–July883

Conservation status

Federal (U.S. ESA)
Not listed No U.S. Endangered Species Act listing in the USFWS ECOS database. USFWS ECOS
NatureServe global
G5 Secure worldwide. NatureServe
Maine
Not listed Not on Maine Rare Plant List (Maine Natural Areas Program, 2021). E and T are Maine's official endangered and threatened plants (12 M.R.S.); SC and PE are tracking categories. NatureServe: SNR, not yet ranked in Maine. Maine rare plant list
New Hampshire
Not listed Not on New Hampshire Official Rare Plants List (Ncr 312, eff. Jan 1, 2020). NatureServe: SNR, not yet ranked in New Hampshire. NH Ncr 312
Rare elsewhere
Other states where NatureServe ranks it rare or missing: GA (S1), KY (S1), MO (S1), OK (S1), SC (S1), TN (S1). (S1 critically imperiled, S2 imperiled, SH possibly extirpated, SX presumed extirpated.)

Checked October 17, 2026. Rankings and lists can change, so follow the links for the latest.

Can you eat it?

For peopleNot well documented

None of the sources we checked (NC State Extension (no page for this plant), USDA PLANTS) say whether it's edible or poisonous for people.

For petsNot well documented

It isn't on the ASPCA plant list.

🌿 Never eat a wild plant unless you're certain of its ID; this isn't medical advice. Worried about a person? Call Poison Control at 1-800-222-1222. Worried about a pet? Call your vet.

Where does it grow?

USDA PLANTS records swamp candles in 29 states plus Washington, D.C.

recorded by USDA PLANTS on our state lists not recorded

See the full list of states

Connecticut, Delaware, Georgia, Idaho, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, New Hampshire, New Jersey, New York, North Carolina, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, Washington, West Virginia, Wisconsin; District of Columbia.

Maine counties with USDA records: Androscoggin, Aroostook, Cumberland, Franklin, Hancock, Kennebec, Knox, Lincoln, Oxford, Penobscot, Piscataquis, Sagadahoc, Somerset, Waldo, Washington, York.

New Hampshire counties with USDA records: Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough, Merrimack, Rockingham, Strafford, Sullivan.

More Maine flowers

Sources