Salle Park Gardens near Reepham will open to the public on Sunday, July 13.
The Georgian-style pleasure garden, featuring formal lawns, topiary, and an orangery, will welcome visitors from 10am to 4pm.
A walled kitchen garden, dating back to the 1780s, will also be accessible.
Entry is £6 for adults, with children admitted free.
Dogs on leads are welcome, and refreshments and plants will be available for purchase.
Visitors should follow the B1145, ignoring the postcode.