background compositae daisy flowers garden heads nature petals summer yellow Anagallis arvensis flora Great Britain herb natural orange Pembrokeshire plant red scarlet pimpernel spring wales welsh wild countryside England english green hills landscape meadow rural South Downs Sussex blackthorn branch bush Prunus shrub stamens tree white Cardamine pratensis Cruciferae Lady's smock mauve Asparagaceae blue coastal Cornish cornwall Scilla verna squill Aesculus carnea Hampshire Hippocastanaceae horse chestnut pink roof tiles ant Denmark flower out wildlife bedding grow head lilac perennial purple.mauve see through slender slim tall thin verbena