This is how the fruity germander has spread in a little over two years. This photo was taken near the end of August during a heat wave. This plant does not tolerate much water. It doesn't like wet feet, but will survive some watering in well-drained soil.
If I had it to do over, I would probably not have planted the tansy so close to the Teucrium Cossonii.
These books will help you select drought-resistant plants and lawn substitutes for your garden.
Waterwise Plants for Sustainable Gardens: 200 Drought-Tolerant Choices for all ClimatesPerennials for the Southwest: Plants That Flourish in Arid GardensLawn Gone!: Low-Maintenance, Sustainable, Attractive Alternatives for Your Yard