@emmaj144 You prune after flowering don't prune into old wood. Remove the stems that have flowered. It won't look that' pretty' and it can also look uneven. I assume you are referring to Cytisus. Genista Lydia shouldn't need pruning. There is another way, go over the plant removing a third of the flowered stems evenly spaced again not into old wood. Repeat this annually after flowering.
I have worked as a Gardener for 24 years. My latest garden is a new build garden on heavy clay.
Cotinus can be quite hard pruned. That keeps the new foliage stronger in colour, although often at the expense of flowers, so it just depends on what you like.
I agree with @GardenerSuze re the broom. Light trim after flowering is the ideal if needed. The best way to grow them is to have a big enough space for them though, so that pruning isn't necessary. They can get top heavy though, and blown over, or uprooted, in strong winds. You can certainly trim the non flowering bits. It will just depend on the shape it is just now - they look awful if pruned into a 'blob', and are always better if kept natural in appearance.
It's a place where beautiful isn't enough of a word....
I live in west central Scotland - not where that photo is...
Thank you so much @Fairygirl The broom was in my garden when I moved in and I loved it before I killed it...I replaced it as I missed the yellow but based on what you've said it's not the best place for this spot as it's right next to a walkway so need to be pruned back...
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There is another way, go over the plant removing a third of the flowered stems evenly spaced again not into old wood. Repeat this annually after flowering.
I agree with @GardenerSuze re the broom. Light trim after flowering is the ideal if needed. The best way to grow them is to have a big enough space for them though, so that pruning isn't necessary. They can get top heavy though, and blown over, or uprooted, in strong winds. You can certainly trim the non flowering bits. It will just depend on the shape it is just now - they look awful if pruned into a 'blob', and are always better if kept natural in appearance.
I live in west central Scotland - not where that photo is...