Antirrhinum majus The most elite of snapdragons, the Madame Butterfly series flaunts tall columnar stems summited with stacks of seemingly detonated, double blooms like no other snap. Rising up to 3–4 feet, these branching, strong plants produce bundles of blooms in a range of colors from white, cream, pink, coral, red, yellow and bicolors. Germination code: (6)