Mahonia, we have several of these. I just take off any bits I don’t want, and it sprouts well elsewhere. Pretty flowers, which are often fragrant depending on the variety, and purple berries the birds like.
They do become very large shrubs - in each direction. If you don't have somewhere else more suitable for it, you can simply prune it back each year. Best to do that in spring. You'll lose the flowering potential when you prune, but it won't need doing too often. Alternatively, remove the odd branch as @Ergates describes.
They're great for birds - the blue tits thoroughly enjoy getting in among the flowers at this time of year, and the blackbirds love the berries
It's a place where beautiful isn't enough of a word....
I live in west central Scotland - not where that photo is...
Most likely Mahonia x media 'Charity'. Mine is 10 years old and roughly 2m x 2m. For the last 5 years I have removed the spent flowers, which has caused it to fill out and be as wide as it is tall.
If you'd like a mahonia in that spot you might like to look at one called 'Soft Caress'. As its name suggests, it is not prickly, and it's also considerably smaller than 'Charity'.
The berries are also edible by humans, hence its common name "Oregon grape". It's the state flower of Oregon. But I doubt if anyone cultivates it for the fruit, you'd have to plant a lot of it to get a worthwhile crop.
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They're great for birds - the blue tits thoroughly enjoy getting in among the flowers at this time of year, and the blackbirds love the berries
I live in west central Scotland - not where that photo is...
https://www.gardenersworld.com/how-to/grow-plants/five-of-the-best-mahonias-to-grow/
If you'd like a mahonia in that spot you might like to look at one called 'Soft Caress'. As its name suggests, it is not prickly, and it's also considerably smaller than 'Charity'.