blue catmint and salvia, love the two color scheme, adding white and yellow for the sloped area.
allium, salvia, grass - Love the different purples, heights, textures and shades of a color.
Mixing together different types of ornamental grasses always creates a visually terrific contrast in the landscape. This lovely border is a perfect example of that where decorative grasses of different colors, textures and shapes have been pleasantly combined for a long season of interest, extending to winter!
A classic perennial border at Heronswood on the Mornington Peninsula