I've had this succulent for four years now, and I don't know its identity. Can anyone help? Unlike many succulents of this type that I've tried, this plant lives on my patio year-round, and in the winter its fleshy leaves have a maroon hue. It takes extreme heat, and almost freezing temperatures, but it will not take full sunlight. For the first time, it has sent up slender stalks with small flower pods that have not opened, even after three weeks. There are numerous fine white hairs near the new growth at the tips of the branches. Any ideas?