Think of a garden space as being a canvas upon which you are free to create a living painting.
As in any art form, all elements of design hold true but much freedom of expression exists also.
Balancing the elements within the scene is of utmost importance.
A large flowering tree on one side of a walkway and a few small annuals on the other side would, of course, not work.
The visual weight of the elements must be considered before any thoughts of color application can be factored in.
Also, consider elements of texture and shape of plant material to be added.
And how about style? Do you want your garden painting to have a formal or informal feeling; definite measured symmetry with rectangular and square shapes or free flowing casual lines and patterns?
Once these decisions have been made, you can start planting and painting.
The colors you choose and the manner in which you use them will determine the personality of your garden.
Do you want clusters of one continuous color flowing into clusters of other continuous colors, intermingled colors within the same area, or soft subdued coloring from the blossoming flowers set upon a steadying background of different shades of green foliage?
A vibrant bed of brilliant yellow or a calming canvas of tranquil blues, greens, or soft pastels?
The choices are yours; grab your trowel and start planting/painting your masterpiece!