How To Choose Pest And Disease Resistant Perennials For Your Garden

How do I choose pest and disease-resistant perennials?

I suggest that you consult a good book, like "The Well-Tended Perennial Garden", and read which cultivars are resistant to pests . For example , there can up to twenty or more phlox that are resistant to mildew . There is no point in buying a border phlox that would be susceptible to powdery mildew, when you can have a wide selection and various colors that are now resistant.