essences agréables

15:27 Aug 7, 2019 

Sorry if it wasn't clear. I meant that grammatically speaking, agréables may apply to those bushes and hedges as well as those trees and that therefore your "ambience/environment" approach may have been what the authors had in mind. And so, on the basis of what I found about British arboretums, using "a fine collection of/the finest shrubs, hedges and trees (make up the background, or whatever)" could be a good solution here to describe that pleasant environment. Warning: I'm not a native speaker nor do I do property ads.

15:17 Aug 7, 2019 

Thank you for the clarification. Do you mean "collection of bushes..." might work here or it might not work here? I did not understand.

15:13 Aug 7, 2019 

I'm not sure that agréables refers only to the trees; to me it can also qualify the preceding shrubs and hedges, which makes me think that Lara might be right about "a pleasant ambience/environment".

As for essences, the man in the street would just talk of beaux arbres, whereas using that particular word is not indifferent and has a purpose: hinting at "ambience/environment". It's a word that will be used in tourist brochures describing the grounds of a castle, botanical gardens or aboretums in order to appeal to visitors and not just in its botanical sense.

Looking at the websites of the British arboretums I know, I find that the word "tree" is often used with "fine(st) (collection of)... "

This is about selling a property and presenting it in an attractive way means a literal translation may not be required. I'm just wondering whether "(the) fine(st) shrubs, hedges and trees" or "a fine collection of shrubs, hedges and trees" (offre(nt) un décor...) might not work here.

14:22 Aug 7, 2019 

I am not "telling anybody off", I was responding and explaining to Phil why my reaction to sarcastic comments (eg. nothing like research) might sound a bit "hostile". I obviously missed the meaning but that does not mean I don't appreciate any help that can be given.
I though it would be obvious I was looking for a good way to phrase this in English, clearly not.
PS. I was aware that my own suggested meanings could have been incorrect, which is why I posted the question.
Thank you for your opinion.