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Diamondpetal Evening Primrose

Oenothera rhombipetala

Diamondpetal Evening Primrose (Oenothera rhombipetala)

Diamondpetal evening primrose sends up tall spikes of diamond-shaped yellow evening flowers on deep sands of the central plains, a biennial that lights up late-summer dusk.

Family
Onagraceae
Type
wildflower
Lifespan
biennial
Height
2–4 ft
Spacing
1–1.5 ft apart
Light
sun, part shade
Soil moisture
dry
Soil pH
neutral, acidic
Bloom
May, June, July, August, September
Bloom colors
yellow
Wildlife value
pollinators, larval host
Caterpillar hosts
~16 butterfly & moth species
Landscape uses
border
Native states
AR, IA, IL, IN, KS, LA, MN, MO, ND, NE, NM, OK, SD, TX, WI

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