Show me a person without prejudice of any kind on any subject and I'll show you someone who may be admirably virtuous but is surely no gardener. Prejudice against people is reprehensible, but a healthy set of prejudices is a gardener's best friend. Gardening is complicated, and prejudice simplifies it enormously.
Allen LacyInsects 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 Lacy