Answer: Either spring or fall are the best times to dig and transplant perennials. That's when weather is cooler and rainfall abundant, which will help the roots re-establish themselves quickly. If you dig and transplant in the summer, you'll want to pay special attention to regular watering and you may want to temporarily shade your plants from hot summer sunshine for a week or 10 days. After your irises have finished blooming you can dig and transplant them without problem. Enjoy your garden!
Q&A Library Searching Tips