Saturday 11th July 2026 and Sunday 12th July 2026 – Belvoir Castle Flower and Garden Show, Belvoir Castle, Grantham, Lincolnshire, East Midlands, NG32 1PE. Visitors can enjoy talks from expert gardeners and horticulturists and buy plants from specialist nurseries at this Flower and Garden Show. Belvoir Castle Flower and Garden Show opens from 9.30am to 5pm. To purchase tickets and find all the details, please click here.