appearance black brightly-coloured carpeting-plants clump-forming clumps color coloration colored colorful colors colour coloured colourful colours common daisy-like drought-tolerant environmental-weed flower flowers garden flowers garden-escape gazania gazanias golden hardy introduced-species invasive lance-shaped-leaves low-growing orange perennial plants prolific rapid-spreader resilient roadside-weeds South-African streaked tough vivid water-wise weed widespread wind-blown-seeds yellow asphodel Asphodelus Greece Greek Mystras natural nature ruins spikes spring wild Asia background beautiful five fresh graphic pretty sun texture bright brilliant closeup floral green India krayker macro petal radiant red bloom cutout gift isolated plant shade summer blue Easter element gradient heart love romance valentines border England english Eryngium garden Great Britain sea holly silver budding flowering Fruitless leaves pink plum Redwood color sky stems tree