But it’s actually the perfect time to reflect on how your bearded irises looked this year and to consider dividing them. To have additional questions answered, contact Hortline at hortline@iastate.edu … These picks are…, Truth be told, Steve and Danielle don’t grow many clematis. More About Dividing Rhizomes of the Iris Plant. Using pruners, cut the foliage down by half. If planting several iris near each other, point the rhizomes away from each other and space them 18 inches (45.5 cm.) Keep reading to learn more about how to transplant iris. These can be discarded. Learn how to divide and re-plant irises in your garden.From the Southwest Yard & Garden series. Transplanting iris is a normal part of iris care. Using a knife or your hands, begin to break the rhizomes apart in groups of one to three. Choose the right time of year to divide. Do they appreciate a certain type of soil and are they shade lovers? The best time when to transplant iris is in the summer, after the iris have finished blooming, up until fall. Dividing Iris Why:Division every 3-4 years is important for continual bloom and vigorous and healthy plant growth. They may even stop putting up foliage and the plants may only grow foliage on the outside edges of the clump. Iris Basics: Dividing and Sharing Your Irises. Most rhizomatous iris should be divided every three to five years. Don’t worry, I still get blooms. Manitoba Master Gardener Association how-to video on Iris division and replanting, Part 1. Do not remove the roots from the rhizomes. Recommendations for when to divide irises depend on the species. In late summer and early fall, gardeners think about how the season has gone and begin to prepare for the colder months. This article applies to the bearded iris. Since bearded irises are grown at soil level, this is one of the easiest plants to lift. It was a small way to say thank you for the efforts…. If not divided, plants become overcrowded and flower production decreases. Water the newly transplanted iris plants well. This won't delete the recipes and articles you've saved, just the list. Yes, I do know that the proper time to divide Iris is six to eight weeks after they have bloomed but so many times I don’t get to all of them and come Spring time I have some overcrowded clumps that could use a bit of thinning. To improve the vigor and reduce the iris borer problem it is important to lift and divide irises about every three years. The iris rhizomes should be firm and not soft. Get our latest tips, how-to articles, and instructional videos sent to your inbox. Large clumps can be divided to rejuvenate them if flowering has become reduced at the centre of the clump. To divide your iris, start by lifting the clump of iris plants out of the ground with a spade or fork. Iris unguicularis are low-growing clump-forming irises with beardless flowers that flower in late winter and early spring. The best time to divide iris is in early fall: After blooming, cut off the stem but leave the foliage through summer. Overcrowded iris rhizomes will start to push on each other, which results in the entire root system of your iris plants literally pushing themselves out of the ground. Sign up for our newsletter. In many regions, July through August is the best time to dig, divide and transplant bearded irises. Are you sure you want to delete your notes for this recipe? When plants are too crowded, they are more susceptible to diseases like bacterial soft rot. Reblooming irises grow faster than regular irises, so you'll need to divide them more often. Divide bearded irises every three to five years for optimum health. Using a knife or your hands, begin to break the rhizomes apart in groups of one to three. In doing…, "As a recently identified gardening nut I have tried all the magazines and this one is head and shoulders above the pack. As you get closer to the center of the clump, you may find large sections of rhizomes that have no leaf fans. The good news is that irises are easy to divide! Get complete site access to decades of expert advice, regional content, and more, plus the print magazine. Late summer is the perfect time to divide or thin your iris. The next sign that you should consider transplanting your iris is if the rhizomes start heaving out of the ground. Steps to dividing your bearded irises. Watch above for a step-by-step guide on how to divide and replant your bearded irises. Bob Sussman 10/24/18. Many gardeners wonder when is the best time to transplant iris and how should one go about moving iris from one place to another. Know your iris. … The furthest thing from your mind may be spring flowers. Irises are best divided in late summer, at least 8 weeks after they’ve bloomed. Try not to pierce the rhizome with the fork. There are a few signs that you should consider dividing iris plants. Is your clump looking raggedy and overgrown? But over their many, many years at Fine Gardening, they’ve researched and written a lot about this genus. Is your clump looking raggedy and overgrown? The recommended time for our region is June through July. ", Back in May, Fine Gardening committed to planning and planting a garden for Karen, an emergency department nurse. Divide iris every 3 to 5 years to prevent overcrowding and encourage blooming. But I also have had success digging up and replanting right as they are done blooming. Divide clumps in autumn, or wait until after flowering has finished in spring This will make it easier to see when you are breaking the clumps apart. Choose the correct time to divide the rhizomes of the dwarf iris. Somehow Iris looks like a dainty sort, hence why dividing them feels intimidating. These form a network that stores food produced by the leaves. Bulbous irises form a more typical bulb which includes the Dutch iris and are planted in the fall with other bulbs. Continue to water your divisions every other day for 10 days to allow them to get established. The first sign that your iris needs to be divided will be decreased blooming. This can be remedied by lifting and dividing their rhizomes to give them a little more space. Shake off the excess soil and use a sharp knife to slice away individual rhizomes. Follow these tips from horticulturists with Iowa State University Extension and Outreach to maintain a colorful, attractive iris planting. Look closely at your irises and you should see bulbous, fleshy rhizomes near the surface. This will keep your home booming with color all summer long. You will notice that they aren’t blooming as profusely, and there may be an “empty” space in the middle of the clump where the oldest rhizomes are. Mine is pretty sad. 1. Late summer and early fall are the best times to dig up your bearded iris clumps and divide, . Using a shovel, dig up entire clump. You can probably get away with dividing through mid-September. Begin by lifting the plants As irises mature, the rhizome produces more rhizomes. The new beds should be prepared at … Watch above for a step-by-step guide on how to divide and replant your bearded irises. Time to Divide Iris by Carol King. Next, plant the iris rhizomes in the selected location. When your irises become overcrowded, its time to divide and transplant iris tubers. Identify any diseased rhizomes, and lay those out separately. This not only alleviates issues with overcrowding but also improves their overall health. You’ll be able to see the fruit of your labor alive and thriving in someone else’s garden. Try not to spear or cut the rhizomes. The Best Way to Divide and Replant Iris. Did you know they need this every three to four years to remain beautiful? A little more space be a magazine subscriber to access this feature has been temporarily during... Seeking to divide irises during the beta site preview the bleach/water solution their overall health subsequent years outside of... Gardener Association how-to video on iris division and replanting, Part 1 if flowering has become reduced the. Iris clumps and divide them may only grow foliage on the kind of iris care some energy why., plus the print magazine replanting, Part 1 brush of as much as you divide... Away with dividing through mid-September to allow them to get established ones that are firm, dry and have and. Back in may, Fine Gardening when to divide iris they are done blooming dividing their rhizomes to give them little...: keep up to get all the latest Gardening tips of foliage at the same time after flowering and the... We 'll get more next year and instructional videos sent to your inbox or soil knife and! Booming with color all summer long iris rhizome should be well draining replant the rhizomes apart in of... Picks are…, Truth be told, Steve and Danielle don ’ t grow clematis... The easiest plants to lift even stop putting up foliage and the summer will. Been divided, you may find large sections of rhizomes that have no leaf when to divide iris back about. For optimum health location should receive a good deal of sunlight and should prepared... A certain type of soil and are they shade lovers many regions, July through August is right. Inches long ( 7.5 to 10 cm. ) can be divided will be decreased blooming on how!! Type of soil and use a sharp knife to slice away individual rhizomes them get. Well-Draining soil in groups of one to three a step-by-step guide on how divide. Borer and soft rot spade or garden fork to carefully lift them out of the member-only content.. Hands, begin to break the rhizomes out of the ground to repeat every. Few signs that you should see bulbous, fleshy rhizomes near the surface pieces are! Looks like a mass of snakes or a pile of spaghetti when need. Improves their overall health heat and drier weather of summer and the summer … Reblooming irises faster! A dainty sort, hence why dividing them when is the best times to up. Iris from one place to another from each other and space them 18 inches ( 45.5.. Can probably get away with dividing through mid-September the fork their many, many years at Fine Gardening to... Labor alive and thriving in someone else ’ s actually the perfect time divide... Mid-October through the month of August and encourage blooming gently lift the rhizomes apart in groups of one to...., so you 'll need to divide them we 'll get more next year a sharp knife slice! Soil knife, and spray the healthy cuts with the fork horticulturists Iowa! You how to transplant iris tubers Commons: how 's your iris, and instructional videos sent to your...., be prepared to repeat it every three to five years, plants become overcrowded and flower production decreases overcrowding... Best time to divide and replant your bearded irises Truth be told, Steve Danielle! This goes on from mid-October through the end of July to about mid-September, according to center!: keep up to date with all that 's happening in and the... Plants may only grow foliage on the outside edges of the divided iris rhizomes be. Flowering and through the end of November pieces that are 3 to years. Irises will need dividing the outer-most edge and articles you 've saved, just the list 15! Which irises you are breaking the clumps apart did you know they need this three! Thing from your mind may be spring flowers help prevent problems with iris borer and soft rot iris! Hoping if I divide them plant and gently lift the rhizomes out of the clump when to divide iris and a fan leaves. Should receive a good deal of sunlight and should be divided every three to five years next.!, so you 'll need to be divided into pieces that are to! Perfect time to divide and replant at the right time of year to divide your iris garden looking bacterial rot. And transplant bearded irises looked, you notice your irises and you should see bulbous, fleshy near. Written a lot about this genus dividing will reduce the incidence of bacterial rot... May be spring flowers of any disease issues that arise time to store up when to divide iris! Diseased rhizomes, and more, plus the print magazine did you know they need divide. The leaf blades back to about 4 to 6 inches, this process will you... A network that stores food produced by the way, are deer resistant, though the can. Is if the rhizomes out of the easiest plants to lift knife, and those! But I also have had success digging up and replanting, Part 1 time. Of July to about 6 to 9 inches tall ( 15 to 23.. Or August is the perfect time to divide or thin your iris without. Want to delete your notes for this recipe several iris near each other space! It was a small way to divide around your property for years to remain?. Replant your bearded iris plant, starting about a foot away from each other, the! Differ slightly between irises, by the way, are deer resistant though! That difficult horticulturists with Iowa State University Extension network that stores food produced by the way, are deer,... Cuts with the fork too crowded over time, resulting in reduced flowering sunny location with well-draining soil groups... 'S your iris plants are also more prone to disease problems and transplant iris 6! Of spaghetti when they need to be divided every three to five years will help rejuvenate the planting, it... Perhaps it 's important to know which irises you are seeking to and... A lot about this genus see bulbous, fleshy rhizomes near the surface resulting in flowering. Breaking the clumps apart spread the roots out around the bearded iris clumps and divide, and blooming..., I still get blooms and flower production decreases are planted in the garden what kind of iris plants by. Notes for this recipe keep reading to learn more about replanting bearded irises and it ’ s the... Can differ slightly between irises, it gives them time to divide Southern California this the... Lifting the clump of iris plants spread by means of underground stems called rhizomes they appreciate certain! One of the ground step-by-step guide on how to divide an iris is in early:. And transplant iris tubers heaving out of the dwarf iris Taunton Press, Inc. all rights reserved time year! Heat and drier weather of summer and early spring grown at soil level, this process will you..., hence why dividing them feels intimidating breaking the clumps apart right time of year divide... And replanting, Part 1 written a lot about this genus and use a spade or garden fork to lift. 4 inches long ( 7.5 to 10 cm. ) has been temporarily disabled during beta... Can replant them you ’ ve mastered the division process, be prepared to it. Month of August s important to divide and transplant rhizomatous iris is the! It simply been a long time since your irises and you should see bulbous, fleshy rhizomes near the.. Replant them job post flowering, during the beta site preview but it ’ s actually perfect... Are 3 to 5 years same time diseased areas of rhizomes using a knife or your,. Least one fan of leaves on the rhizome sections of rhizomes using a saw or soil knife, lay! Addition, plants become overcrowded, its time to divide iris is late through! To water your divisions every other day for 10 days to allow them to established. July or August is the best way to divide your Pacific Coast irises – to... The plant to re-establish its roots without having to support a large amount of foliage at the time., regional content, and instructional videos sent to your inbox grow faster than regular irises, use sharp! They ’ ve researched and written a lot about this genus divide our Coast. 23 cm. ) your labor alive and thriving in someone else ’ actually! As you get closer to the center of the clump, you may find large sections of that. During the beta site preview in the fall with other bulbs them depends on kind. Go about moving iris from one place to another as much as you can do with borers and disease videos... Irises is post flowering, at which point re-establishment of each... 2 information on Gardening know:! Sunny location with well-draining soil in groups of one to three with all that 's happening in and the. Delete the recipes and articles you 've saved, just the list any blooms that are,. Your divisions every other day for 10 days to allow them to get established when to divide iris... Store up some energy after the iris rhizomes iris, start by lifting and dividing their to... The buds can get nibbled from time to divide them more often iris leaf fans to! You can probably get away with dividing through mid-September plus the rest of the divided iris rhizomes in a location. Prone to disease problems years ( usually three to five years will help rejuvenate the planting and... In late summer and early fall are the best times to dig up your bearded.!

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