border color colour coneflower diverse diversity Echinacea flower garden grow mixed natural nature plant summer brightly-coloured brown carpeting-plants clump-forming clumps coloration colored colorful colors coloured colourful colours common contrast contrasting daisy-like drought-tolerant environmental-weed flowers garden-flowers gazania gazanias golden hardy introduced-species invasive low-growing perennial plants prolific rapid-spreader resilient roadside-weeds South-African streaked tough vivid water-wise weed widespread wind-blown-seeds winter yellow broken clay earth flowerpot growing nested old pile pot red terracotta auckland bud fuzzy greenhouse hairs hairy multicolored new zealand sveres background flora green landscape pretty snap dragon wallpaper bed England Great Britain growth herbaceous lush quality success Sussex aquilegia Columbine cultivar dainty flowerhead long petals spurred stamens blossom bush bushes gardening healthy herb herbal herbs leaf leaves meadowsweet medication medicinal medicine sunshine