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Iris cristata Crested Iris

Ohio Native Plant Natural Range

To view the natural range of Iris cristata visit the USDA Natural Resources Conservation Service website.
Two blue Crested Iris flowers in full bloom a bit of their green leaves the shape of tiny swords is in background.
Two blue Crested Iris flowers in full bloom
Several white Woodland Iris just starting to unfold, in the background is a rock foot path.
Give them a cool, partly shady, well- drained spot and you will be rewarded with a ever expanding patch


Cultivation Information Woodland Iris

Height - 6 inchesFlower Color -BlueBlooms - Early springSun - Part shade - light sunHardy Zone - 3 to 9
Soil - Well-drained, rich, acid soils.Soil pH - Acidic <6.8
Family - Iridaceae
Ground cover - If given time, fills in nicely as ground cover. Does best without competition from other native plants Experiment – Intermingled young Iris cristata plants amongst young Argentina anserina – Silverweed, thinking the blue and white flowers of the iris would complement the yellow of Silverweed, Since both bloom around the same time frame, it seemed like a sensible plan. What I failed to take into consideration was the fact Woodland Iris grow at a snails pace and the Silverweed at a jack rabbit. I moved the iris!
Small white iris that is growing close to the ground.
In our yard white Woodland Iris is the dominate color

Wildlife Significance Woodland Iris

Pollen/nectar - For small bees
Hummingbirds - Find this early early spring flower a fine dining spot

Propagation Notes Woodland Iris
Storage - Moist Cold - 60 days - Small Zip lock plastic bag with a few table spoons of moistened vermiculite
Seeds Planted - 2-9-2012Sprouted - 2-18-2012 - Many
Night Temperature - 61 - 63°FDay Temperature - 64 - 65°F - Under florescent lights
Natural light - 3-4-12 - Few hours each day of exposure to sun light
Rock Gardens - Woodand Iris would be a nice addition to your native rock garden. Rocks provide a cool, moist environment for the roots of this native Ohio iris. Ours are growing near a rocky path that receives filtered sun throughout the day and a few hours of direct sun late in the afternoon.
Seed Provenance Iris cristata
Hickory Road Gardens, WI - 2013 root stock - NOG 2014 - present
Additional Pages
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Ohio Department of Agriculture Nursery Inspection 2010 - 2022
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