After nine years of running the two separate businesses on the same site in Swanley, Kent, Provender Nurseries will seek to provide a more unified service. Wyevale East is a wholesale plant supplier while East Horticulture manufacturers compost and supplies horticultural sundries. Together they sell 7,000 lines to landscapers and designers.
East said: "Wyevale Nurseries has worked with us through our infancy as a joint-venture partner and I'm grateful for their support. This is a natural progression for the businesses and I'm confident that under the leadership of Richard McKenna we will be able to deliver an ever-expanding range of products."
McKenna, who set up Wyevale East in partnership with East and Wyevale Nurseries in 2004, will now be Provender Nurseries managing director.
"I'm delighted to be launching Provender Nurseries and excited to support customers by providing so much more for them under one roof," he said.
"My team is fully behind this major development and we're looking forward to growing the business and the site in the months and years to come."
Provender Nurseries is anticipated to turnover £3m a year from its 4ha site, which has space to expand. Wyevale East increased turnover by 20 per cent last year. The new company will employ a total of 27 staff.
The firm will continue to source more than 10 per cent of its plants from Wyevale Nurseries.
East, along with his brother Paul, sold Snowhill Garden Centre in Crawley to Haskins in 2003.