Sempervivum globiferum ssp. allionii is a spiky looking lime green rosette that can flush red at its tips. This is a "roller" variety, meaning that it produces lots of round offsets on delicate stolons, that easily roll away from their mother plant.
Sempervivum is a genus of about 40 species of flowering plants in the Crassulaceae family, commonly known as houseleeks. Other common names include liveforever and hen and chicks, a name shared with plants of other genera as well. They are succulent perennials forming mats composed of tufted leaves in rosettes.
Proper watering is critical because succulent plants rot quickly in soggy, waterlogged soil. One watering per week is generally enough during warm weather, but never water the plant unless the soil feels completely dry.
Use a cactus or succulent mix. You can also make your own with two parts topsoil, two parts sand and one part perlite.
The ideal temperature for these plants is between 65 and 75°F (18-24°C). When temperatures zoom upwards or plummet down, the plants become semi-dormant and will cease growing.
