Sempervivum 'Ohu Om Ohu' is a stunning Hens & Chicks variety that forms clusters of lime green and brick red rosettes. It's a fast grower, producing numerous offsets that create a dense, colorful mat. In the winter, this plant takes on a dramatic crimson hue. Exceptionally frost-hardy, it thrives outdoors in rocky beds and cold climates. For the best color and form, give it plenty of outdoor sunlight and plant it in gritty, well-draining soil.