cluster Daphne flower garden group love natural nature petal pink spring Thymelaeaceae Thymeleaceae dahlia England english flowers Great Britain heads path red summer white blue bush hydrangea plants shrub fleshy leaf leaves norway norwegian plant Sedum succulent wild yellow Lychnis petals anemone bank euphorbia flora Greece Greek green spurge biennial Caryophyllaceae Dianthus grow sweet William clump delicate pale shady Soil woodland abundant background Lantana many orange profusion texture