Amelanchier will be fine there then. The smaller crab apples or maybe a small rowan would be good too and both good for wildlife as well as providing spring flowers and autumn fruits for colour as well as foliage changes thru the growing season.
Vendée - 20kms from Atlantic coast.
"The price good men (and women) pay for indifference to public affairs is to be ruled by evil men (and women)."
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I live in west central Scotland - not where that photo is...