Have you ever heard a horticulturists encourage the use of plants having “multiple seasons of interest”? This might be said in response to someone’s complaints about forsythia, for example.
Forsythia blooms in spring, an explosion of lemon-yellow blossoms covering the plant. But the rest of the year, it is drab and unruly. The unruliness causes many gardeners to shear the shrub into boxes (completely unnecessarily) and then when spring comes again the flower display is subpar and sparse—one season of interest is all you will get from forsythia.