The answer to this problem? Develop a system that brings flowers and other colors to the same areas throughout each distinct season of the year. You might see spring bulbs and popular summer blooms, then the landscape would boast fall flowers and hardy but colorful winter foliage. Some businesses even change some or all of their landscape style to reflect holidays, seasonal hues, or special occasions.  

But not all features of a color program are annuals. Your particular strategy might also include bulbs that spend the winter underground, evergreen bushes and shrubs, and some lush perennials that bloom on a set schedule. 

Generally, each planting is done in a way to maximize immediate impact. The goal is, after all, to provide year-long beauty rather than to have to wait until everything grows back in. So flowers would be planted in compact groupings for maximum visual effect. You might see many more plants in one spot than you would otherwise, and each would have been curated to add as much pop as possible. 

Certainly, some aspects, such as planting daffodil bulbs that come back year after year, can be done just once. But the bulk of the work needs to be done when seasons change and at regular intervals to keep all the greenery healthy. You may also need to consistently replace plantings that don't take or lose their blooms before their neighbor plants.  

Experience is also key to a good color program. A well-qualified landscaper can get the maximum effect from each planting and prolong its use — minimizing the need to change flower beds. With strategic fertilizing, effective watering schedules, and personal care, you might get extra weeks or months of color from one planting. They can also help find the best plants and flowers to provide the effect you want.