Insects leave (Madagascar periwinkle) Catharanthus roseus out of their diets. So, for that matter, do deer. The reason is that the plants are loaded with alkaloids so potent that they are the source of vincristine and vinblastine. These are drugs important in routines of chemotherapy for treating Hodgkin's disease and certain forms of leukemia.
Allen LacyAnne of Austria, wife of Louis XIII of France, had such an aversion to roses that she could not stand seeing one even in a painting.
Allen LacyI cannot walk into our garden without constantly being reminded of the friends who have shared their plants.
Allen Lacy