How to Keep My Irises Blooming


With several hundred species and cultivars, irises vary greatly in color, shape and size. Some serve as short ground covers, while others are up to 4 feet tall. Some irises are rebloomers, meaning they can bloom a second time in the summer or fall after the initial spring blooming cycle. It's possible to keep your irises blooming year to year and to have rebloomers bloom a second time with a little care.

Things You'll Need

  • Fertilizer
  • Hand clippers
  • Fertilize irises in the spring when new growth emerges. Sprinkle a low-nitrogen fertilizer, such as 5-10-10, or bone meal around the plants, but don't let it touch the rhizomes. It's better to use less than the recommended amount than more. For reblooming irises, fertilize again a month after the initial blooms appear to help them bloom again.

  • Clip off spent iris blooms and the stalks if you are growing reblooming irises. This will help keep them blooming. For irises that are not rebloomers, clip off the spent blooms to help the irises bloom the following year.

  • Divide overcrowded iris beds every three to five years in the late summer or early fall. If your irises have fewer blooms than previous years, they may be overcrowded. Dig up the rhizomes and separate them, then replant them 12 to 24 inches apart.

  • Remove weeds and grasses from the iris bed so there is less competition for water and nutrients from the soil. Water established irises during extremely hot weather when rainfall is limited.

Related Searches


  • Photo Credit Jupiterimages/ Images
Promoted By Zergnet


You May Also Like

  • How to Get an Iris to Bloom

    Irises (Iris spp.) flower in early to midsummer, producing multiple blooms on each stalk. They grow in U.S. Department of Agriculture plant...

  • How to Care for the Iris Flower

    Growing iris plants is a relatively simple process for anyone who has a naturally "green" thumb. These flowering plants grow from rhizomes...

  • How to Care for Iris Plants After Bloom

    Iris are truly plant-them-and-forget-them perennials that will almost grow themselves. Once they're planted in a sunny, well-drained spot, leave them alone and...

  • How to Keep Cut Irises Fresh

    Freshly cut flowers around the home brighten up various rooms. Irises are an excellent choice for cut flowers. They are a beautiful...

  • Why Didn't My Iris Bloom This Year?

    Iris (Iris spp.) is a popular plant grown in gardens and home landscapes prized for its distinctly formed blooms that come in...

  • How to Keep an Amaryllis Bulb Blooming

    In order to keep an amaryllis bulb blooming, it's important to get it on a natural cycle so that it will bloom...

Related Searches

Check It Out

How to Make a Vertical Clay Pot Garden

Is DIY in your DNA? Become part of our maker community.
Submit Your Work!