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Concord Crush Iris
Concord Crush Iris

Concord Crush Iris

The Lily Pad
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This Siberian iris displays unique large blossoms of dark blue with small white signals veined dark blue. Blossoms are multi-petaled, fluffy and double. This selection is every bit as low maintenance as its single–petalled counterparts, but so much fancier!
Botanical name: Iris sibirica 'Concord Crush'
Form: Perennial
Hardiness Zone:
Flower Color:
Dark blue
Foliage type:
Flat, linear, vein-less, upright, grass-like in appearance
Bloom time: 
27 inches
24 inches
Light requirements:
Full sun
Plant depth:
1 inch of soil over rhizome

See "Growing Tips" for more detailed instructions

Growing Tips and Instructions

Visit our How-To Cultivation Library to learn more about peonies and how to grow them.

Upon receipt of your Siberian Iris, soak your rhizomes in water overnight. Plant your Siberian Iris deeper than other Iris, covering the rhizomes with one or two inches of soil. Space your plants two feet apart. Siberian Iris prefer acidic soil (pH 5.5 to 6.9).

Planting Siberian iris gardens is best done in a rich, fertile soil, however, Siberian iris will perform in lean or poor soils as well. Feed Siberian iris plants in spring with a nitrogen rich fertilizer and fertilize again when blooms are spent. Peat moss, compost, and humus all work as soil enhancers. 

In northern states, Siberians do best in full sun, or at minimum six hours of sunshine. In hot southern areas, protection from the mid-day sun is often a requirement. 

Good drainage is essential, as Siberians thrive in moist but not soggy conditions. Keep the soil consistently moist until the plants are established, about a year. They enjoy lots of moisture in spring, and will do best if given a minimum of one inch per week during the balance of the growing season, so plant them with other perennials, such as day lilies which also need constant moisture to keep doing their best. Water established plants regularly when drought conditions exist. 


Sorry, we do not ship outside the U.S. or to Hawaii due to agricultural restrictions.

We guarantee safe arrival of healthy bulbs, that varieties will be true-to-name, and will grow if planted as instructed, subject to the limitations described in our Shipping and Returns Policy.

We begin shipping our bulbs, tubers, and perennials in mid-February through Spring. Upon arriving, your bulbs and most of your perennials may show signs of growth such as green leaves and sprouts - this is okay and transportation during this time should not harm the plants.

All bulbs and perennials should be planted in your garden as soon as possible to ensure the best success. If you must delay planting, open the bags to permit air circulation and place them out of direct sunlight in a cool, well-ventilated room. Do not place the bulbs where they can freeze. If you have the space, storing the bulbs in the refrigerator is another excellent way to “hold them” prior to planting. If you choose this method of storing your bulbs, be sure not to store fruit with them, as this is detrimental to bulbs.

Plant outdoors when the ground is no longer frozen and the conditions have improved for your zone.

If you have any questions or concerns our customer service team would be glad to help you at any time. Please use our contact form or email us at