Jacksons Fencing, near Ashford in Kent, said its "mini Chelsea" idea should be more widely adopted to jog customers into thinking about the potential of their gardens.
The four gardens, officially opened by celebrity TV gardener Joe Swift, featured products including fencing, planters and posts.
The gardens will be in place for a year to give customers an idea of how the landscapes evolve as the plants grow and the structures start to weather.
Established designers Mark Smith, Matthew Childs, Heather Appleton and Philippa O'Brien created the gardens. Suppliers included Brett, Chilstone, Coblands Nurseries and Best4plants.
For Smith, who is based in Ramsgate, Kent, it was an opportunity to show what he can do. "Jacksons supplied all the equipment and labour and it's a great advert for my work," he said.
Owner of the centre Richard Jackson explained: "We wanted to show that fencing is designed to do more than keep out dogs."
Swift added: "It gives a great opportunity to designers. I like the way they are putting themselves out there. Most of the public won't go to a flower show, so this will give them ideas they can take away."
He predicted that classic designs and Mediterranean plants needing little care and water will be part of future design trends.