Meaning: The art and science of preparing and dispensing drugs and medicines, Classified under: Nouns denoting cognitive processes and contents. Synonyms: pharmaceutics; pharmacy. Hypernyms (pharmacy is a kind of...): medical specialty; medicine (the branches of medical science that deal with nonsurgical techniques)
Best Answer: Cut off dead blossoms and dead bloom stalks when the iris has stopped blossoming, but don't cut back the leaves until they begin to turn brown in the fall. The leaves are needed to produce next year's blooms. When you do cut, leave a fan shape about six inches long.
Irises usually don't change color. You may have had a yellow iris tuber among the blue irises and this year the yellow iris was a more vigorous grower and choked out the blue irises. Or the seeds from your irises may have ripened, dropped, and germinated. Iris seed does not grow true to the parent plant.