Photo of a white Silene

Leaf arrangement: crosswise opposite. Leaf tip: Pointed/acute. Flower type: Single. Leaf margin: Entire. Flower scent: Unscented. Winter hardness: Good (USDA-zone 5, 6). Flower color: White-white-NN155D. Soil fertility: Not very demanding. Leaf, general shape: Lanceolate. Flower...