@30pics4jackiesdiamond There's been a lot of clearing out of old shrubs and trees over the last couple of years, but the gardens are still lovely. The wallabies now have their own enclosure. The website doesn't mention it, but they now charge £4.80 for car parking on top of the entry fee.
@busylady The gardens used to belong to the Loder family, one of whom was a plant hunter and breeder, so they chose exactly the right site before they planted the gardens.
Thank you all for your kind comments - they are much appreciated.