Germany too far east, Portugal is far too South and also Portugal is ruled out at all - so also not the Azores nor the Canares. I rule out Spain, as it's also the latitude of Portugal. And "The Low Countries" (interesting term).
It has palms so .. not Iceland (I cant't remember palm trees in a botanical gardens there). The Faröer may be west of Germany, but probably too far North for them either.
So either it's the UK, Ireland or France (not much left though).