The site is located within the roadside grass verge on the eastbound carriageway of the A38 Plymouth Parkway, near St Budeaux. The site is owned and managed by the Highways England and isn't accessible to the public.
The site supports a population of Deptford Pink, a small flowering plant. There are records from the site dating back to 2005 with records from the last few years reaching as many as 450 flowering plants.
Deptford Pink is classified as a priority species in the UK Biodiversity Action Plan and as Endangered in Britain on the Red Data List. It's protected in the UK under Schedule 8 of the Wildlife and Countryside Act, 1981 (as amended).