Photo: Mason Brock (Masebrock), Public domain · source
Pruning guide · Perennial
Narrowleaf evening primrose (Oenothera fruticosa): when and how to prune
Oenothera fruticosa
Narrowleaf evening primrose (Oenothera fruticosa) is best pruned in March.
| Pruning months | March |
|---|---|
| Flowering | June–August |
| Good for bees, butterflies and birds | Yes, for bees |
| Native to Belgium | No, planted |
Narrowleaf evening primrose (Oenothera fruticosa): when to prune it?
In March, before the new shoots appear. In summer, only remove spent flowers.
What else to prune in those months? March
Narrowleaf evening primrose (Oenothera fruticosa): how to prune it?
- Cut the old, dry stems to 5–10 cm above the ground.
- Remove dead or damaged parts completely.
- In summer, cut off spent clusters for a longer flowering.
How much to cut, and how often?
- One pruning period a year: March.
What does it mean for wildlife?
- Narrowleaf evening primrose (Oenothera fruticosa) flowers in June–August, when it attracts bees.
- If you only cut back in March, the old stems stand through the winter: insects overwinter in them and birds eat the seeds.
Nearby: related pruning guides
Plant profile: Narrowleaf evening primrose (Oenothera fruticosa) · Pruning calendar and basic rules
This guide is compiled from the Bladwijzer plant profile and pruning calendar.