My first foray north of the M25 takes me to Hatfield House, one of the country's finest Jacobean buildings and home of the 7th Marquess and Marchioness of Salisbury.
The Plant Fairs Roadshow brings together specialists in everything from cottage garden plants to hardy exotics. Many of them don't have nurseries open to the public, so this fair is a wonderful way to take advantage of their copious talent as growers. All of this against the backdrop of the North Front of Hatfield House, adjacent to the entrance of the West Garden.
Admission to the plant fair is included in the standard grounds ticket costing £12.
Sunday 30th April, 11am-3pm.
Great North Road, Hatfield, AL9 5HX.