I'm considering spreading pea gravel over the backyard grass, like in this photo. Pretty tired of being a slave to the grass watering every summer, not to mention the costly water bills.photo by Andrew Montgomery
The color of the flowers, the bloom time and the overall garden design are all a big part of this but, perhaps, the most important thing to consider is the amount of sun the garden plant needs. - My Cottage Garden
Echinops ritro 'Veitch's Blue' - A wonderfully spiky tall summer flowering perennial, with blue spherical blooms, resembling a mace in form. Best grown on loose soil in full sun, and a wonderful cut flower.
Buy Ammi visnaga from Sarah Raven: Ammi visnaga 'White' is a slightly chunkier form of ammi with dense yet delicate white and green domed flowers, which make one of the best garden plants and filler foliage plants you can grow.