abstract abundance background bits bulk chips chopped color colored colors colour coloured colours cover covering cut cut-up garden ground-cover mixture plentiful quantity rough selection shapes Sizes split surface surfaces texture textured textures varied various wallpaper weed-control wood woodchips appearance brown plant-material abundant aggregate decoration decorative filler filling garden-landscaping gardening gravel gray grey groundcover landscaping light milky-quartz outdoors path paths pathways pebbles protective quartz rocks shaped size solid stones strength strong surfaced terrain thick agricultural-pest arum-lilies arum-lily bush bushland calla-lily childsiana death-lily declared-pest dense-clumps funeral-flower green-goddess herbaceous introduced invasive lifestock-threat lily-of-the-Nile out-of-control pasture-invader perennial pig-lily spreading St-Joseph's-lily surfacing thick-fleshy-leaf-blades toxic varkblom weed white-arum-lily zantedeschia-aethiopica