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Plant · P-1107
Missouri Evening Primrose
Oenothera macrocarpa
Missouri Evening Primrose is a low, sprawling perennial wildflower forming a mounding clump of narrow, gray-green leaves. Large, bright yellow, four-petaled flowers up to five inches across open in late afternoon and stay open through the following morning, from spring into summer. It thrives in dry to medium-moisture, well-drained ground and tolerates poor, rocky or limestone-derived soils, self-seeding readily where conditions suit it.
Record at a glance
Growing profile
- Sun
- Full Sun · Partial Sun
- USDA zone
- USDA 3–7
- Soil
- Sand · Loam · Clay
- Moisture
- Dry · Moderate · Well-Drained
Vertical layer
Herbaceous- Soil pH
- Not yet recorded
- Plant type
- Perennial
- Mature height
- 9–12 in
- Mature spread
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The deeper layer