Siberian iris spreads quickly, so be sure that you are planting it in a spot where it has room to grow. Keep the soil consistently moist until the plants are established, about a year. Divide clumps from midsummer to early autumn. The main requirement Siberian Iris has in terms of soil is that it should drain well. Dividing the plants like this will not only increase your supply but it can re-invigorate the original speciment. Growing the Siberian Iris. Siberian iris plants can reach as little as 12 inches (.3 m.) in height or grow taller than 3 feet (1 m.). Plants are lifted all the year round. Removing Siberian Iris Flowers – Does Siberian Iris Need Deadheading, Iris Care: Information On Iris Plant Care, Differentiating Iris Flowers: Learn About Flag Irises vs. Siberian Irises, Gifting Used Gardening Books: How To Donate Garden Books, Regional To-Do List: West North Central Gardening In December, Plant Swap Ideas – How To Create Your Own Plant Swap, Wild Strawberry Weed Control: How To Get Rid Of Wild Strawberries, Plum Tree Pruning: Learn About How And When To Prune A Plum Tree, Lasagna Composting – How To Layer Sod For A Lasagna Compost Garden, Flower Gardening Ideas For Kids – Making A Sunflower House With Kids, The Act Of Giving – Crafty Ways To Give Back, Grateful To Give Back: Sharing The Garden With Others In Need, We’re All In This Together - Passing On Gratitude In The Garden, Recipes From The Garden: Pressure Cooking Root Vegetables, ‘Butter and Sugar’ cultivar has white petals on top with yellow falls, ‘Sultan’s Ruby’ offers deep magenta blooms, ‘Wing on Wing’ and ‘King of Kings’ both have white blossoms. Water established plants regularly when drought conditions exist. It does not play well with others, and, as it spreads, you would find yourself constantly removing it from where it does not belong. Easy to grow, irises Germanica and Sibirica require to be planted in a sunny position where their rhizomes can bake in the sun. How to Grow Siberian Iris From Seed Indoors To start your seeds indoors, you will need to cold stratify them. The rhizomes are covered with the brown remnants of old leaves, from previous seasons. Learn how to grow Siberian iris for its lush, long-lasting blooms and low-maintenance, narrow foliage, which remains attractive after the blooms are spent. It appears to be a form of Iris sibirica in a rich blue with white falls strongly veined in blue. The two species plants are found primarily in Central Europe and Asia. That said, this plant is remarkably tolerant of soil conditions, and can usually even handle relatively wet soil. David Beaulieu is a garden writer with nearly 20 years experience writing about landscaping and over 10 years experience working in nurseries. Plant the rhizomes so that you can see the tops just above the soil, with their roots beneath the soil. Fertilize the Siberian iris every spring with compost. The maintenance involved in growing Siberian iris stems mainly from the fact that the plant grows from rhizomes, which allow it to spread. To enjoy the blooms most readily, plant Siberian iris gardens from corms in late summer or autumn. Each blossom features rich wine purple standards and falls and lighter blue-purple styles. Noted for its showy color patterns, Iris sibirica 'Contrast in Styles' (Siberian Iris) is a clump-forming perennial with incredibly beautiful flowers in late spring to early summer. Botanical name: Iris sibirica. When growing Siberian iris (Iris sibirica), gardens will burst with early season color and intricate, frilly flowers. 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