The North Yorkshire nursery is supplying a mixture of mature trees, feathered trees, bare root and container grown native plants, as part of the construction of the new Aberdeen Western Peripheral Route.
Johnsons will supply 100% of the trees for the Northern and Southern sections of the route to William Houston Landscapes of Glasgow which has won the contract for the landscaping there.
Plymouth-based Landscape Matters is undertaking landscape work on the Central section, which Johnsons is supplying 70% of the trees for.
The major highways project is being delivered by Transport Scotland on behalf of the Scottish Government, and in partnership with Aberdeen City Council and Aberdeenshire Council, as part of Transport Scotland's commitment to improving travel in the north east of the country.
Johnsons is also working with Transport Scotland on the Forth Replacement Crossing project. The six-year contract to supply approximately half a million native trees, hedging and larger specimen trees concludes in 2018. This project has been planted predominantly by William Houston Landscapes and Ashlea.
Johnsons of Whixley joint managing director, Iain Richardson, said: "We have a great relationship with Transport Scotland that is built upon our ability to meet exacting specification and timescales, and our understanding of local environments.
"Following our prominent involvement in the Forth Replacement Crossing Project, we’re proud to be a part of another significant infrastructural development in Scotland."