How creating colorful plant combinations can create an impact in the garden

Sometimes, the most memorable plant combinations consist of plants that you would not imagine could have such an impact. Individually, they might not be too interesting, but brought together in a garden bed, they leave an indelible impression.
I saw an example of this the other day. The bed consisted of a variegated Euonymous with foliage that was mostly gold, ordinary zonal or fish geraniums with flowers in fire engine red, and bluish-purple flowered sea lavender (Limonium perezii). Gold and re