Narrowleaf Evening Primrose
Oenothera fruticosa
Mason Brock (Masebrock)
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Onagraceae
- Genus:
- Oenothera
- Species:
- Oenothera fruticosa
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 3-4 ft
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- apr, may, jun, jul
- Bloom Colors:
- Yellow
Keystone Species Ranking
- Caterpillar Keystone:
- ★★★★☆ Based on number of butterfly and moth species using this genus as host plant (Source: National Wildlife Federation)
- Bee Keystone:
- ★★★☆☆ Based on number of native bee species using this genus for pollen and nectar (Source: National Wildlife Federation)
Reported Fauna Sightings
Bees: Two-spotted bumble bee (Bombus bimaculatus), Two-spotted bumble bee (Bombus bimaculatus)
Soil Requirements
- Soil Type:
- sandy, well-drained, moderately fertile soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- Prefers open, sunny locations in native habitats
Germination Information
Pre-treatment: Single-step cold-moist stratification for temperate woodland species. for 60–120 days
Notes: Seeds germinate readily without pretreatment.
Source: OpenAI GPT-4o