background bedding border Cistaceae flowers garden Helianthemum herb nature orange plants summer bloom blooming blooms blotched blotches cistus cistus-purpureus close close-up-flower closeup color colored colorful coloring colour coloured colourful colouring crimson-spot-rockrose cultivar dark-blotches drought-tolerant evergreen exotic flower flowering golden-center golden-centre graden-flower laudanum mediterranean orchid-rockrose papery pentamerous perennial petals pink pistils rockrose shrub stamens yellow-centered yellow-centred