A little trip to Iberia

Often blooming from March, the Rock candytuft (Iberis saxatilis) is a subshrub (or dwarf shrub) recognizable by its white flower heads with its outer petals much larger than the others. Its species name ("saxatilis") represents it well because it is found clinging to the limestone rocks. Besides, it is the host plant of the caterpillar of a rare butterfly: : the Portuguese dappled white (Iberochloe tagis). This little butterfly with green and white marbled wings flies from February to June.