Helianthemum cinereum subsp. rotundifolium, commonly known as Grey Sunrose, is a low-growing, evergreen shrub native to the Mediterranean Basin, particularly thriving in garrigue and maquis habitats, which are characterized by dry, rocky areas often on limestone, with a scrubby vegetation of drought-resistant plants. It typically reaches a height of 0.5-1.5 feet (0.15-0.5 meters) and spreads 1-2 feet (0.3-0.6 meters), forming a dense, mat-like ground cover. The plant features small, silvery-grey leaves and bears bright yellow, showy flowers that bloom profusely in the spring and continue into the summer, adding a splash of color to the garden.

Grey Sunrose is valued for its drought tolerance and ability to thrive in poor soils, making it an excellent choice for rock gardens, xeriscaping, and coastal landscapes. It is also used as a ground cover or for edging in sunny borders. This plant prefers full sun exposure and well-drained sandy or loamy soils, and it requires minimal watering once established, making it a low-maintenance option for gardeners. While it is generally pest and disease-free, it can suffer from root rot in poorly drained soils.CC BY-SA 4.0