While I usually stay away from overly modern designs, there's something to be said for a fresh clean backyard that at once contrasts and compliments the natural elements...
If a neutral palette has you bored, there are plenty of ways to keep with a modern style that inject a bit more personality and color... Consider painting a wall, railing, or fencing in a soft accent color, or add a subtle touch of warmth with side tables or pots. Even a bold stripe pillow does the trick to add a bit of whimsy to modern, monochromatic furniture.
Another option? Take the colors already found in nature (greens and blues) and intensify them! I personally love this palette myself. Warm wood tones also help, as do using brighter plants and playful pieces like the oversized pot for the hydrangea bush, or the doubled up wicker stools.
Of course, to really warm things up, adding yellows, oranges and bold reds are always an option. These spaces exhibit a more mod/trad sensibility with the white 'furniture' by Philippe Starck and chinoiserie inspired pieces in red.
So, if you're a modern inspired guy or gal, just remember - there's no one way to do it! And, if you're wondering how to get this look, don't worry - I'll be posting later today on some great resources for modern pieces, so be sure to come back for more!
*rooms via trendir, domino, living etc, better homes & gardens, sunset magazine, and houzz