Odontarrhena bertolonii, commonly known as Bertoloni’s rockcress, is a perennial herb native to the Mediterranean region, particularly thriving in dry, rocky habitats often on limestone substrates. This plant is adapted to the Mediterranean climate, characterized by hot, dry summers and mild, wet winters. It typically grows to a modest height of 0.1-0.5 feet (0.03-0.15 meters), forming a low, ground-hugging rosette. The yellow flowers of Bertoloni’s rockcress bloom in the spring and summer, presenting a subtle yet attractive display that can add a splash of color to rock gardens and xeriscapes.

Bertoloni’s rockcress is valued for its drought tolerance and ability to thrive in poor soils, making it an excellent choice for gardeners looking to create a low-maintenance, water-wise garden. It is often used in rock gardens, as a ground cover, or in alpine and gravel gardens where its ability to grow in fast-draining sandy or loamy soils is advantageous. While it prefers full sun, it can tolerate some light shade. Due to its small size, it is also suitable for container planting. Gardeners should be aware that although it is not prone to many diseases, it can suffer if overwatered or planted in poorly drained soils.CC BY-SA 4.0