Tulips are widely planted as a feature (up to 20,000 a year) both formally and informally, with those lifted being replanted in the orchard area. Dahlias are also extensively planted and left in the ground to overwinter. The sandy soil and mulching help most survive, once established.
The current owners have the house and gardens up for sale.
I returned home that evening the better for the day. I never fail to learn something new on these trips or be impressed by the willingness of those who host our visits to share their enthusiasm and knowledge. Thank you, too, to Lesley Jones for arranging the day.