A 30-acre u-pick lavender farm at Cadwell Farm a few miles north-west of Hitchin (on the A505 toward Letchworth). Long rows of lavender stretch across the hill in deep purple bands from late June through mid-August, with views back over the town; visitors are handed a paper bag and a pair of scissors at the gate and walk through cutting their own bunch.
The same site also has a sunflower field that flowers from late July, a small farm shop selling lavender soaps and oils, and tractor rides at weekends. Admission charged; allow 90 minutes. Closed outside the lavender season.