Following consultation with growers, retailers and various RHS plant committees, the new AGM logo was developed with the aim of helping gardeners select good, all-purpose plants.
RHS director of horticulture Jim Gardiner said: "We are really excited with the new design and increasing involvement of the trade with our award.
"Our committees are all very supportive of increasing awareness of the RHS AGM among gardeners - their work underpins our horticultural pursuits and we have very dedicated, hard-working and knowledgeable members whose role is to ratify all RHS AGMs from trials or round-table discussions."
He added: "We are very grateful for their time and efforts, without which we would not be able to run this important service."
Darby Nursery Stock sales director Jane Darby said of the rebrand: "We like the new logo - it is more meaningful at first glance and it should encourage customers to choose RHS AGM plants for better performance and create more successful gardeners."
Other industry figures involved in the rebranding included Garden Centre Group head of horticulture Tim Clapp, Haskins Garden Centre buying director Philip Evason and Hardy's Cottage Garden Plants owner Rosy Hardy.