To go beyond cultivation, change the garden narrative, might not be possible for your correspondent. He has an idea why it is people tear land up and he has an idea why it might not be the best thing to do. He knows what Eden would look like. It's a place where Creeping Grass would lie down with the Groundhog and where Frost would be subject to contract law.
Alternatively Eden is a place to visit, but for your correspondent something
like the narrative of Cancun or Benidorm is pretty much out of the question,
they sort of summarize for him what hell would look like. Then there are
secondhand bookshops, and the trouble is not every secondhand book shop is an
Eden, because some of them pretend to be heaven.