Oenothera tetragona
Yellow Sundrops · Narrowleaf Evening Primrose
Also published as Oenothera glauca. 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, WildflowerExtension Gardener Plant Toolbox
- Habit
- perennialPlants of the World Online
- Flower
- Gold/YellowExtension Gardener Plant Toolbox
- Blooms
- Spring, SummerExtension Gardener Plant Toolbox
- Native range
- Alabama, Connecticut, Delaware, District of Columbia, Georgia, Illinois and elsewhereGBIF Backbone Taxonomy
- Hardiness zones
- 3-9Extension Gardener Plant Toolbox
Growing conditions
- Sun
- Full sun; Partial ShadeExtension Gardener Plant Toolbox
- Soil
- Clay, High Organic Matter, Loam (Silt), SandExtension Gardener Plant Toolbox
- Soil pH
- Acid (<6.0), Neutral (6.0-8.0)Extension Gardener Plant Toolbox
- Moisture
- Good Drainage, Moist, Occasionally DryExtension Gardener Plant Toolbox
Toxicity is noted only where a source states it. No note here is not a finding of safety.
Sources: Extension Gardener Plant Toolbox — NC State Extension; Plants of the World Online — Royal Botanic Gardens, Kew; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.
Protocol
DerivedN. C. Deno, 1993Difficulty Low
Sow and cover
Temperature: 70°F 21°C
No stated waiting before sowing. Then 14 days to germinate.
Germinates in 14 days.
Deno says some. No count.
How each step is done, in Deno’s words, and what Verified and Derived mean.
Germination trials
Readers’ own records of sowing this species, published after review. Share your trial · All trials
No trials shared for this species yet.