Leaf size plays a crucial role in determining the growth patterns of closely related Limonium plants. A study compared 13 species with different leaf sizes under well-watered and water-deficit conditions. Species with larger leaves showed higher growth rates, regardless of water availability. The main factor influencing growth rate was the net assimilation rate, with leaf mass area being a key component. Larger-leaved species consumed more water but also had higher water use efficiency, especially under water-deficit conditions. This goes against the usual trend where larger leaves are associated with lower growth capacity in dry environments.