Staehelina dubia

Staehelina dubia is a perennial subshrub belonging to the Asteraceae family. This species is recognized for its adaptation to arid environments and is increasingly studied for its potential in specialized agricultural sectors, including essential oil production and dry-garden landscaping.

Native to the Western Mediterranean basin, this plant is naturally found in regions of France, Spain, and Italy. It thrives in rugged, rocky habitats and calcareous soils, demonstrating remarkable resilience to the high temperatures and prolonged dry spells characteristic of the Mediterranean climate.

From a botanical perspective, Staehelina dubia is a compact plant typically reaching a height of 50 cm. It features narrow, silver-pubescent leaves that reduce transpiration, and attractive terminal inflorescences composed of pinkish-purple florets that bloom during the summer months.

Successful cultivation requires strict adherence to soil moisture management. It demands well-drained, nutrient-poor, alkaline substrates. In agricultural practice, avoiding nitrogen-rich fertilizers is essential, as the plant is adapted to low-fertility conditions. Full sun exposure is a non-negotiable requirement for healthy vegetative and reproductive growth.

The economic utility of this crop spans from decorative horticulture to potential nutraceutical applications. While it is generally robust, producers must monitor for fungal issues related to soil saturation, such as root rot. Controlling water drainage and ensuring adequate air circulation are the primary strategies to mitigate pest and disease pressure.

• Requires full solar radiation
• Needs well-drained, rocky or sandy soil
• Low fertilization demand
• Excellent drought tolerance