In the grass-cutting / mowing debate for road verges and public open space, most of the research / discussion papers explore frequency of mowing and the resulting impact on geophyte and annual populations of flowers with a view to bolstering urban biodiversity and supporting pollinator populations. However not all road verges are equal in the habitat services they provide. I would like to explore precedent for landscape management markers (ie. landscaping / landscape architecture interventions for communicating no-mow areas to contractors) which have been implemented across the globe. Please can provide pointers to precedents and policies which have been adopted, discussed, or assessed.