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Four-points Evening-primrose

Oenothera rhombipetala

Last reviewed: June 2026

Four-points Evening-primrose (Oenothera rhombipetala)
Photo: Dr. Thomas Barnes, Universtiy of Kentucky / Wikimedia Commons (Public domain)

Light

full sun

Water

low

Size

12"–36" H × 6"–18" W

Bloom

Jun, Jul, Aug

Native to

OH

Pollinators

bees, moths, beetles

Four-points evening-primrose is a drought-tolerant biennial that produces bright yellow flowers with distinctive diamond-shaped petals from June through August. This native wildflower grows 12-36 inches tall and thrives in full sun with minimal water needs once established.

In an HOA neighborhood

Four-points Evening-primrose 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.

  • Biennial lifecycle creates gaps when plants die after second year
  • Can appear weedy or unkempt when not in bloom
  • Evening-blooming habit means flowers may be closed during day

Wildlife value

The evening-blooming flowers attract night-flying moths and sphinx moths, while also providing nectar for bees and beetles during daytime hours.

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.

Does Four-points Evening-primrose fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.