Dividing Pacific Coast irises is a great way to propagate these beautiful plants and keep them healthy. The best time to divide them is in winter, after the first soaking rains. This is when the plants are dormant and will be less stressed by the process.
To begin, you’ll want to look for clumps of Pacific Coast irises that have plump, white roots. These are signs of a healthy plant that is ready to be divided. Gently lift the clump out of the ground, being careful not to damage the roots.
Once you have the clump out of the ground, you can begin separating the sections. Each section should have at least one leaf fan attached to it. This leaf fan is important because it contains the energy and nutrients the plant needs to grow. Using a sharp knife or garden shears, carefully cut through the rhizomes to separate the sections.
After you have divided the sections, it’s important to replant them promptly. Pacific Coast irises don’t like to be out of the ground for too long. When replanting, make sure the crown of the plant is just visible at the soil surface. If you bury the crown too deep, it can lead to rotting.
Once you have replanted the divided sections, it’s crucial to water them well. This will help settle the soil around the roots and encourage the plant to establish in its new location. Keep in mind that Pacific Coast irises prefer moist soil, so be sure to water regularly after dividing.
Dividing Pacific Coast irises can be a rewarding experience, as it allows you to expand your iris collection or share plants with friends and fellow gardeners. It’s also a great way to rejuvenate older clumps and promote healthier growth. By following these steps and being mindful of the plant’s needs, you can successfully divide and propagate Pacific Coast irises in your garden.
