A walk along the busy road can be a real nature trail thanks to the verges. Allowing these to grow and flower really creates a continuous strip of biodiversity and activity. Here is my road verge nature trail through Drybrook in The Forest of Dean.
First knapweed , attracting plenty of insects.
Umbellifers a plenty
Tufted vetch
Meadow vetchling
Brilliant bracken uncurling at the tip
Followed by some favourites, granny granny pop out of bed ( convovulus) ,common mallow and Trailing Tormentil. 
This was only a short walk and only a few examples of things seen on the ‘nature trail ‘
Keep road verges flowering !
NATURE TABLE EXPLORER 