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Missouri Evening Primrose (Oenothera macrocarpa) in bloom
Photo: Karl Gruber, CC BY 3.0 at via Wikimedia Commons

Perennial

Missouri Evening Primrose

Oenothera macrocarpa

Four-inch lemon-yellow flowers that open at dusk on a low, sprawling native. Moths love it.

  • Pollinator
  • Native
  • Groundcover

Quick facts

Hardiness
USDA zones 4–8
Water
Very low once established
Sun
Full sun
Size
6–12 in. tall × 12–24 in. wide
Bloom & interest
Huge lemon-yellow cups that open in the evening, late spring through summer
Plant type
Perennial
Native range
Native to the south-central Great Plains (MO, KS, OK, NE, TX, CO)

Why we recommend it

Enormous evening flowers on a low native that thrives in hot, rocky, dry spots and stays put, unlike its spreading pink cousin. Plant Select's SILVER BLADE (subsp. incana) adds silver foliage.

Best regions: Front RangeHigh DesertGreat PlainsTexas

How to grow it

Watering to establish

Water weekly the first summer; established plants need none and rot if overwatered.

Pruning

Cut back sprawling stems and the winged seed pods in fall or early spring.

Soil

Rocky, sandy or gravelly soil with sharp drainage; tolerates alkaline soil. Deep taproot, so site it once.

Pairs well with

Read more

We haven't written about Missouri Evening Primrose in depth yet. Browse all plant guides.

Where to buy

Shop Missouri Evening Primrose from trusted growers. For the best selection of xeric plants, try a mail-order specialist or ask a local independent nursery.

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Sources

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