Sempervivum arachnoideum or ‘Cebenese’ is native to higher altitudes in Europe, It forms delicate rosettes to 3″ in diameter with pale green leaves. Leaves have very ciliate (hairy) margins, often totally obscuring the rosette with a dense white “cobweb” appearance. Flowers are star-shaped and pink. In the past, Sempervivums were planted on roofs in Europe and it was believed that Semperivivums had the ability to protect the house from lightning strikes or other attacks. Star-shaped rose flowers in summer months. Sempervivums can provide colorful accents for rock gardens, dish gardens and often are used in strawberry pots, old bird baths, troughs, logs and other unusual plantings. They require porous soil with adequate drainage. Filtered light with ample airflow. Prefers shade during summer dormancy. Water thoroughly when soil is dry to the touch.