The event was held by the Royal Warrant Holders Association and had 60,000 visitors. Vitax was among 200 Royal Warrant holders exhibiting, including Delamore, Gavin Jones, Hillier, Suttons Seeds, Barcham Trees, Taylors Bulbs and G Burley.
The event marked the 60th anniversary of The Queen’s Coronation.
Vitax chairman Paul Gooding said: "The Coronation Festival was a once in a lifetime opportunity and for the duration of the four days, we were inundated with visitors who had a genuine desire to learn about the product range.
"The entire experience and atmosphere was fantastic and provided Vitax with an opportunity to meet with members of the royal family and customers from both the UK and overseas.
"We received some great feedback and requests for different products, especially regarding pest control which we will be looking into in the future."