daisies daisy England flower garden Great Britain petal white yellow bloom convolvulus cultivar plate silverbush Anthemis blossom compositae butterfly fritillary Great Spangled Fritillary orange speyeria cybele annual blooms petals purple summer viola viola tricolor abundant layer many profusion shrub bee flying garden insect hover fly in flight insect colors dice-box grass green nature red seeds sun border colour display natural path perennials pink show color fresh flower garden flower lilac sky white flower