Hello to all. Have been repotting my mom's 200 or so pelargoiums and geraniums, and it is quite a job. She is 88 and cannot keep up with the demand of her garden.I am curious as to how to learn the difference between the two, if any, and how to ID what they are called, as in martha washington, and so on.That way I can know what color they are when dormant, how high they grow, scented, etc.