The Pop Up Farm, run by sixth-generation Hertfordshire farmer Ian Pigott on Thrales End Farm near Harpenden, offers pick-your-own pumpkins, sunflowers and corn on a working regenerative farm, plus an evening 'Moonlit Pumpkins' event and school education programmes. It has run PYO pumpkin events since 2017. Exact 2026 dates were not published at the time of research.