The Q&A Archives: Dividing Japanese Iris

Question: What is the best time and method for dividing a large clump of Japanese iris?

Answer: Beardless, or Japanese Iris will perform better in clumps than other types of iris, but after a while, they all need to be divided. You can divide in the fall or in the spring by digging rhizomes and cutting or breaking the clump apart. Keep the fibrous-rooted rhizomes moist during the process of digging and replanting. Plant rhizomes 2" deep and 1 1/2' apart in a bed freshly amended with organic matter. Japanese iris demand moist conditions during their growing and flowering period and aged compost or peat moss will help the soil retain moisture.

« Click to go to the homepage

» Ask a question of your own

Q&A Library Searching Tips

  • When singular and plural spellings differ, as in peony and peonies, try both.
  • Search terms are not case sensitive.

Today's site banner is by plantmanager and is called "Captivating Caladiums"