access barrier barring bollards chips concrete concrete bollards council garden edge edge of council public roadside garden no thoroughfare pillars plants prevention protection public roadside garden pyramid shaped pyramid topped roadside roadside garden shaped shapes wood wood chips flora flowers Greece Greek mauve natural nature plant spring verge white wild diversity red lake motorroad pond street trees water green purple Spain yellow butterfly colorful colourful forest flower Galeopsis tetrahit hemp nettle Common Mallow Malva sylvestris pink pollen face wildflower beetle insect ladybug brown close-up dragonfly