Around 800 organisations spanning many trades and industries hold the Royal Warrant, which is granted to those that have provided goods or services for a period of at least five years to the Royal Households.
Established in 1977, Langthorns Plantery is a second-generation family horticultural business, and said it was delighted to receive the accolade both in recognition of its quality plants and its sustainability ethos.
The company motto of owner Edward Cannon is "we live plants, we love plants". Cannon took over the running of the Plantery in 2001.
Langthorns Plantery specialises in ornamental plants, shrubs and trees, and sells many uncommon and heritage species that are more difficult to obtain.