cowslips England english flower Great Britain natural nature Primula veris spring Sussex verge wild yellow blackthorn blossom bush flowers petals Prunus shrub stamens white doronicum garden gemswurz green jellow jellow flowers plant plants summer sun sunny texture bow bulb celebration color festive floral free gift image photo ribbon ribbons stock tulip vivid blue bluebell Endymion fresh non-scriptum oak Quercus tree wood Castanea chestnut coppice Surrey woodland ancient arch architecture Greece Greek hills hillside historical Mystras old ruins stone blooms daffodils narcissus native trumpets