- Reason #1: To prevent self-seeding
- Reason #2: To extend flowering time
- Reason #3: To prepare for winter
- Reason #4: To remove diseased and damaged parts
- What to look out for when cutting
- tips and tricks
Columbine - for some gardeners it is an enchanting bedding perennial, for other gardeners it is like weeds. Why should you cut them back and how to do it?

Reason #1: To prevent self-seeding
Once a columbine has gained a foothold at its location, it can no longer be stopped. After its flowering period is over, it forms numerous tiny seeds. When ripe, these are blown away by the wind and tend to self-seed.
Anyone who does not prevent self-sowing by cutting off the immature seeds or cutting off the withered flowers must expect columbine to spread in no time at all. Different varieties interbreed and varietal specimens are a thing of the past.
Reason #2: To extend flowering time
Some gardeners cannot get enough of the delicate flowers of the Columbine. It's too bad that the flowering season is over in July. But with a bit of luck, the columbine will bloom again, in autumn. To do this, the faded flowers should be cut off radically.
Reason #3: To prepare for winter
While a columbine that is in full sun grows up to 90 cm high, a columbine in the shade only grows up to 30 cm. Either way - the withered perennial should be cut back to just above the ground after its flowering period or in autumn. If you forget, you can make up for the pruning in the spring.
Reason #4: To remove diseased and damaged parts
It is true that columbines are rarely affected by diseases. But in dry seasons they become weaker and more susceptible to powdery mildew. If you discover infected parts of the plant, cut them off immediately. Do not dispose of them in the compost, but in the household waste!
What to look out for when cutting
When pruning a columbine, always keep the following points in mind: