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Pruning guide

How to prune common evening primrose

Best time
After flowering in summer (if controlling self-seeding)
How often
Once per season at flowering's end; plant is then removed
Technique
Cut flowering stalks to ground level once blooms are spent, before seeds ripen, to prevent aggressive self-seeding. If naturalising is desired, leave stalks standing for birds and let seeds disperse, then remove the dead plant in late autumn.

More common evening primrose care

Pruning common evening primrose — FAQ

When should I prune common evening primrose?

After flowering in summer (if controlling self-seeding). Cut flowering stalks to ground level once blooms are spent, before seeds ripen, to prevent aggressive self-seeding. If naturalising is desired, leave stalks standing for birds and let seeds disperse, then remove the dead plant in late autumn.

How often does common evening primrose need pruning?

Once per season at flowering's end; plant is then removed. Common Evening Primrose is a biennial — it grows as a rosette in year one and flowers in year two, then dies. Pruning is minimal: remove spent flower stalks in summer if you want to limit self-seeding (it can spread aggressively). Otherwise leave seedheads to self-sow and pull spent plants out at season's end.

How do you prune common evening primrose?

Cut flowering stalks to ground level once blooms are spent, before seeds ripen, to prevent aggressive self-seeding. If naturalising is desired, leave stalks standing for birds and let seeds disperse, then remove the dead plant in late autumn.