Around 12 gardens will be open, including the garden at Mells Manor, designed by Edwin Lutyens and Norah Lindsay.
Homemade lunches and teas will be served in the Tithe Barn, as well as at the community-run Mells Village Cafe.
There will be a plant stall, and you can also buy plants at the Walled Garden.
Tickets: £5 on the day from the Village Shop (Under 16s free)
Proceeds support the community-run shop and cafe.
Mells is a beautiful estate village a few miles to the west of Frome. The post code for your satnav is BA11 3PF
www.mellsvillage.co.uk