Photo: tbrnewsmedia.com. Leave the healthy older portions of the plant intact. Find natural places to make a split, such as where the rhizome has forked. Using a pitchfork, carefully dig around the bearded iris plant, starting about a foot away from the outer-most edge. How to Divide German Bearded Iris 337. Tie thin strips of colored rags on the bud stalks while they are in bloom in order to identify the colors of mixed patches during division. It depends on where you live and where you store them. Rising off the soil will allow you to better see the rhizomes and roots to inspect for damage. Bearded iris have rootlike structures known as rhizomes, which grow horizontally underground and are used for food storage. Dig the rhizomes up and check them for disease or insect damage. This not only alleviates issues with overcrowding but also improves their overall health. Once you have the bearded iris rhizomes lifted, shake off any loose soil. Space your Bearded Iris 35-45cm apart. Step 1: Dig around the bearded iris. Divide large clumps shortly after flowering, using two forks inserted back to back in the centre of the lifted clump. Cutting the fan of leaves connected to a lifted iris rhizome makes the plant easier to work with when dividing and replanting and helps prevent water loss while the plant is becoming re-established. As your bearded iris grows, the original rhizome will clump out and produce more rhizomes. Bearded Iris (Iris x germanica) also known as Rainbow Iris or Flag Iris is an evergreen perennial rhizome. ", "When to divide them was helpful. So when is the best time to divide irises? Then make a clean cut through the rhizome, using the same sharp, disinfected knife or pruner. This gives the newly formed rhizomes time to become established. Discard (and do not. Wash the soil from the rhizomes and roots with a steady stream of water. Only dig up an iris plant when it is dormant. This may occur in as little as two years or as many as five. How to divide Iris in Spring…Because I know things can get away from us and we miss the optimum times to do certain garden chores. If possible, lift the whole mass out whole, but if you are unable to do this, carefully break the clump into smaller parts and lift these out. How to Divide Bearded Iris. Get involved The Royal Horticultural Society is the UK’s leading gardening charity. Alan Gray walks you through dividing Bearded Irises, from digging to splitting to planting. Iris germanica is commonly known as bearded or German iris. Over time, these rhizomes can … Try not to spear or cut the rhizomes. Bearded irises appreciate a limed soil, so provide this if necessary. wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. The bearded iris (Iris germanica) grows as a perennial in U.S. Department of Agriculture plant hardiness zones 4 to 10. Next, brush of as much dirt as possible from the iris rhizomes. Here are a few tips for dividing and transplanting German bearded iris properly. Full of different colors and an amazing fragrance, they are the envy of every gardener. The best time to dig, divide, and replant bearded irises is in July and August. Irises can become congested over time, which tends to inhibit flowering. Spread the roots around and down the mound. Carefully dig the clumps with a garden fork or spade, taking care not to chop into the rhizomes more than necessary. If your bearded iris leaves have dark streaks in them, you probably have iris borers, so look closely. It comes from the Iridaceae family and originated in southern and central Europe. ", others. ", "It was very clear on the directions on how to divide bearded irises. Introducing "One Thing": A New Video Series. My Bearded Iris has not been divided for many years. They grow best in full sun; little sun will most likely only give you leaves. Make the hole about 2 to 3 inches deep, then create a mound in the center of the hole to just about soil level. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. Know when to divide the rhizomes. f they are beardless, and they were recently transplanted, they will skip a season of blooming. Dividing the bearded irises is key to remedying one issue entirely, while the other will continue to sting indefinitely until I grow used to this new situation. Here’s how to do it in a few simple steps. Cut back the leaves to 1/3 their original height. At least a half a day of sun is required, in a well-drained spot. Unlike Dutch irises that grow from bulbs, bearded irises grow from tuberous roots. The prime time to divide iris is when the weather starts to cool, late July through September, about 6 weeks before the first hard frost. In Iowa, July or August is the best time to dig, divide, and transplant bearded irises. A 2-by-2-foot iris clump can easily be divided into quarters, allowing you to leave a 1-foot clump behind and have three to share or move about your garden as you wish. Dig the clump up and pry the rhizomes apart, discarding all shriveled and diseased parts. If you’re wondering if now is the time to divide your rhizomes, look for these cues: The plant is … More rhizomes = more leaves and more blooms, but after awhile, the original one will die out. The traditional technique is to dig up the iris six weeks after flowering, divide and replant. Thousands of cultivars exist, all valued for their attractive, showy flowers and ease of care. Shoots will emerge; although they won't bloom the following spring, they will become quality divisions by summer. Sabrina Hahn The West Australian. Some people cut the green leaves when dividing bearded irises, but it is not required. Over time thousands of iris hybrids have been developed and introduced, resulting in a huge variety of plant sizes and flower color combinations. Divide bearded iris every third year for the good of the parent plant and to create more plants. In … Avoid moving daylilies in summer in climates with long hot summers and in cold climates during winter. After flowering lift the rhizome with a garden fork. When to divide Bearded Iris. If you don't have space to do this in the garden, it is sometimes easier and neater to do it on a tarp. What can I do? The bearded iris should be divided in late summer when the weather starts to cool. Lift clumps of iris carefully using a shovel or pitch fork. Bearded Iris The best time to divide and transplant Iris rhizomes is 2-3 weeks after the finish of blooming. Dividing a Bearded Iris Irises provide some of the earliest spring color in the garden, from white to purple too many other colors of the rainbow. Water well and do so weekly until you start to notice new growth. In some places such as Michigan, you can digup iris rhizomes and set in the yard for a couple months with no ill effect. How to divide iris. We found some borer damage and mushy rhizomes that we discarded. Cut off the healthy, young rhizomes at the … Choose a full sun location and start by digging a shallow hole that will be wide enough to spread out the rhizome's roots. I love buying perennials that I can divide and share with, "It is my first time trying to divide my bearded purple and white irises, and I am going to begin tomorrow. Older portions of the dwarf iris back my bearded iris irises can congested! Divide the rhizomes out of the lifted clump and discard the woody centre were like tulips and had to cut... Garden for their beautiful flowers in spring and their bold, vertical.... And blooms best in a well-drained spot your most beautiful ( and bountiful ) garden ever th… how to bearded! 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The outer young rhizomes at the centre of the dwarf iris to carefully lift them out of rhizome...

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