This year, there will 19 gardens - of all shapes and sizes - to admire.
Some of the gardens will also be offering refreshments and some will have plants for sale.
This year, instead of the usual scarecrow trail, there will be a new competition.
Visitors to the gardens need to find the name of a well-known flower in the ‘Flower Trail’.
There are prizes up for grabs too; first prize £25, second £15 and third £10.
The event runs from noon to 5pm on Saturday, June 29, and Sunday, June 30.
Combined admission is £5, with accompanied children free of charge.
Information and tickets will be available from Caistor Arts and Heritage Centre, in Plough Hill, from 11am each day.