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.
Step 5. Divide iris clumps every 3 to 4 years to keep existing plants healthy and avoid crowding. Dig up the rhizome clumps and cut apart with a sharp knife at the visible seams. Replant the largest and healthiest-looking rhizomes.