Seven books, all good.
I picked up The Sword in the Stone because Monty Don quotes a beautiful and moving passage from it in Nigel: My family and other dogs, (and I recalled Laura Freeman also mentioning it in her excellent The Reading Cure). Very much in the same vein as John Masefield's classics, it's funny, poignant, and shows very vividly TH White's deep relationship with the natural world.
Shirley McKay's Fate and Fortune gets a little post here, and Helen Humphreys' The Evening Chorus is here.
The two Persephones are Dorothy Whipple's High Wages and The Rector's Daughter by FM Mayor - both excellent.
Last but not least is nature writer John Lewis-Stempel's La Vie, a very enjoyable account of life on his farm in the Charente region of France through a calendar year. This excerpt will give you the flavour.