Yes, you can create a garden like this! Just look at the shapes: sharp spires, round globes, soft spires, and a few oddballs. Pick flower shapes in the same color family (pinks and purples, here), throw in a few silver foliage plants, and plant closely together. Its that simple!
country garden - SFH adds: I had to pin this wonderful site on three different boards it is such a great example of a successful border, winning plant combinations, and Blue/Purple- crown jewels in the garden. - My Cottage Garden