How to Divide Siberian Iris? – A Step by Step Guide

To divide siberian iris, use a sharp knife or garden fork to separate the clumps into smaller sections. Siberian iris should be divided every 3-4 years to ensure healthy plants and continuous blooms.

Siberian iris, native to central and eastern europe, have adapted to grow in wet meadows, along streams, and in other marshy environments. They are hardy perennials with showy blue, white, and purple flowers that bloom in late spring. However, after a few years, siberian iris may become overcrowded and stop blooming. To avoid this, gardeners must divide the plants to create more space for new growth and blooms. Dividing siberian iris is a straightforward process that can be accomplished in early fall or early spring. This article will guide you on how to divide siberian iris and ensure healthy, stunning blooms year after year.

How to Divide Siberian Iris? - A Step by Step Guide


Overview Of Siberian Iris

Siberian iris is a perennial plant species that grows in various habitats across the world. Its distinct features include blade-like leaves and several blooming colors, apart from its tough hardiness. Growing siberian iris is popular globally for their versatility and decoration purposes.

Dividing siberian iris is advisable after 3-4 years to maintain healthy growth and robust blooming. Early fall is the best time for this task since it is the dormant period. A substantial part of the plant should be removed, divided, replanted with nutrient-rich soil, fertilizer, and water.

This will make sure that the plant remains healthy and vigorous. Divide the siberian iris to diversify your garden or even share it with others.

Tools And Supplies Needed

Essential tools required for the division process include a garden fork or spade, a trowel, and a pair of pruning shears. Ensure that the tools are clean and sanitized before use. In addition to the tools, prepare additional supplies such as a bucket for compost, gloves, and water for hydration.

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Once you have gathered all the necessary tools and supplies, begin by thoroughly watering the plants to make the soil moist and easier to work with. Use the garden fork or spade to lift the entire clump of iris from the ground and separate it into smaller sections using the pruning shears.

Remember to trim the leaves to prevent water loss and shock. Finally, replant the divided iris sections in their new location and keep them well-watered until they are established.

Dividing Siberian Iris (Iris sibirica)

Step-By-Step Guide To Divide Siberian Iris

Dividing siberian iris can be a bit daunting, but with the right steps, anyone can do it. Timing is a critical factor when dividing siberian iris as best done in early spring or fall. Pre-divison care includes watering the plant a day before to help loosen the soil and removing any dead foliage.

When dividing, use a garden fork or spade to lift the rhizomes from the ground, ensuring you don’t damage the roots. Divide the rhizomes, keeping healthy stems and roots, and replant them into a previously dug hole and water them well.

Finally, post-division care includes keeping the soil moist for the first few weeks to ensure that the plant recovers well. Following these steps, one can have a beautiful and healthy siberian iris garden.

Transplanting And Maintenance Tips

Siberian iris is a stunning perennial with striking flowers that come in various shades of blue and purple. If you want to propagate your siberian iris, you need to divide them every three to four years in late summer or early fall when the foliage starts dying back.

To transplant the divided iris properly, dig a hole big enough for the roots, plant the iris in well-draining soil, and water thoroughly. To care for your newly transplanted siberian iris, make sure to fertilize regularly, mulch around the plant base, and water deeply once a week.

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Common issues that may arise after division include root rot, overcrowding, and pests. If you notice any problems, remove affected parts and treat with insecticides or fungicides if necessary. Remember to keep the soil moist and avoid overwatering to ensure the healthy growth of your siberian iris.


Now that you know how to divide siberian iris and propagate these beautiful plants, you can easily expand your garden and share them with others. Remember to choose a sunny, well-draining location and to divide the plants in the early spring or late summer.

With the right tools and technique, the process is simple and straightforward. It’s important to keep the new divisions hydrated and regularly fertilized until they become established. By following these steps, you can enjoy the stunning blooms of siberian iris year after year and even turn them into a gift for your loved ones.

So don’t hesitate to give it a try and let the beauty of siberian iris shine in your garden.