Euphorbia Ascot Rainbow, Blackbird, Blue Haze, Glacier Blue, Martinni, Ruby Glow, Shorty, and Silver Swan. These Euphorbias are an easy way to bring soft color into any garden, drought tolerant, or not. Many have been selected because of their distinct variegated foliage, or their velvety dark hues. They all have unique flowers of, creams, limes, greens, or reds. One of the major benefits of these plants is their tolerance to heat and dryness. Very easy plants to grow and re-bloom. Use a well draining cactus and succulent soil for best results. When flowers fade, cut plants near the base to make new shoots, however, avoid contact with the sap, which can cause skin irritation.