More than 1,500 lines of trees and shrubs will be on show, including premium varieties from Italy and Spain.
Also for sale are sundries, including: decorative aggregates and horticultural products, pots, composts and fertilisers.
Four Oaks, in Lower Withington, Cheshire said: "Our Open Days were always a huge hit, and after a few years’ break, we are thrilled to bring them back! As a special thank you to our valued customers, we are offering free refreshments, including tea, coffee, and juice, throughout the day. And here’s a little extra treat: anyone who spends over £10 between 10am and 3pm will receive a free burger to enjoy while they shop."