Oenothera serrulata
Yellow Sundrops · Plains Yellow Primrose · Toothed Evening Primrose
Also published as Calylophus serrulatus. You are in the right place.
About the plant
What it is and where it grows — not part of any germination protocol.
The plant
- Habit
- Herbaceous perennial
- Height
- 0.5-1.5 ft
- Spread
- 0.5-1.5 ft
- Flower
- Showy; yellow
- Blooms
- June to July
- Native range
- Central North America
- Hardiness zones
- 3-8
- Note
- Taprooted, so it resents moving. Tolerates drought.
Growing conditions
- Sun
- Full sun
- Soil
- Dry, gravelly or sandy, well-drained
- Moisture
- Dry
- Watering
- Dry
Toxicity is noted only where a source states it. No note here is not a finding of safety.
Source: Plant Finder — Missouri Botanical Garden.
Protocol
DerivedN. C. Deno, 1993Difficulty Low
Sow and cover
Temperature: 70°F 21°C
No stated waiting before sowing. Then 35 days to germinate.
Germinates in 35 days.
Deno says abundantly. No count.