blackthorn blackthorn flower bush England flower Great Britain natural nature Prunus spinosa shrub spring white wild flowers grow growing mountain mountains plains prairie prairies wild flower wild flowers yellow Acer sempervirens Cretan fresh Greece Greek green leaf leaves maple tree trilobate bench english house rest seat shade sit sunlight Sussex village beech choice Fagus forest path route South Downs track which wood abundant bloom blossom blue branch garden magnolia many petal pink profusion sky hill lake landscape languid lazy norway peace relax ripple serene sunshine warm water daffodil flowerhead narcissus petals trumpet background bladder bud campion hanging pendant Silene somerset texture vulgaris