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Broad-Leaved Sweet Pea

Lathyrus latifolius · Legumes

Broad-Leaved Sweet Pea (Lathyrus latifolius)
(c) John Brew, some rights reserved (CC BY), uploaded by John Brew · CC BY · via iNaturalist

Broad-Leaved Sweet Pea (Lathyrus latifolius) is in the Legumes family (Fabaceae). Across the U.S., iNaturalist users have logged 2,198 research-grade flowering observations of it in our sample, peaking in July.

Nationally it blooms mainly from June to September, but timing varies a lot by state and elevation — see the table below.

When to photograph Broad-Leaved Sweet Pea: observations by month (U.S.)

JanFebMarAprMayJunJulAugSepOctNovDec

About Broad-Leaved Sweet Pea

Lathyrus latifolius, the perennial peavine, perennial pea, broad-leaved everlasting-pea, or just everlasting pea, is a robust, sprawling perennial in the Pea Family Fabaceae. It is native to Europe but is present on other continents, such as North America and Australia, where it is most often seen along roadsides.From Wikipedia via iNaturalist — article, CC BY-SA.

Broad-Leaved Sweet Pea by state

StateObservationsPeak monthMain season
California485JuneJun–Aug
Oregon347JulyJun–Aug
Washington234JulyJun–Aug
Ohio172JulyJun–Sep
New York132JulyJun–Aug
North Carolina91JulyJun–Sep
Pennsylvania90JuneJun–Aug
Michigan70JulyJun–Sep
Colorado67JulyJun–Sep
Massachusetts62JulyJun–Sep
Kentucky47JuneJun–Aug
Maryland34JuneJun–Aug
Vermont33JulyJul–Aug
Utah32JuneJun–Jun
Virginia32JuneJun–Jul
West Virginia32JulyJun–Sep
New Jersey27AugustJun–Sep
New Mexico24AugustJun–Aug
Tennessee24JuneJun–Jul
Indiana20JuneJun–Sep
Idaho16JuneJun–Sep
Arkansas15JuneJun–Jun
Rhode Island15JuneJun–Aug
Connecticut14JuneJun–Sep
Wisconsin13AugustJul–Aug
Georgia11JuneMay–Oct
Missouri10MayMay–May
Illinois9JulyJul–Sep
Delaware8JulyMay–Aug
Alabama6MayMay–May

Main season = months with at least 30% of the state's peak-month count.

Related wildflowers (Legumes)

Photography tips

  • Photograph flowers on calm, overcast mornings to avoid wind blur and harsh shadows.
  • Get low: a shallow depth of field (f/2.8–f/5.6) isolates a bloom against soft color.
  • Stay on trails — trampling meadows kills plants and ruins next year's display.
  • Try a kaleidoscope abstract of a single bloom with our online kaleidoscope tool.

FAQ

When is the best time to photograph Broad-Leaved Sweet Pea?
Nationally, July has the most observations, with the main season from June to September.
Where is Broad-Leaved Sweet Pea most often seen?
The most observations come from California, Oregon, Washington.