This is a beautiful small garden straight off a main road in the Cotswold town of Chipping Campden. You enter through a small gated archway in a stone wall and a tranquil green garden haven hides behind it. (Do watch your head, it’s a low arch.) The garden was created in the 1970s to commemorate Ernest Henry Wilson who was born in Davies House, Lower Street, Chipping Campden in 1876 (the house now has a commemorative plaque). He went to work at Botanical Gardens in Birmingham and Kew before he…