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Sino-Siberian Iris (SINO-SIB)

Sino-Siberian is not a botanically correct term...

but my mentors used it and so will I. These are the 40 chromosome counterpart to the typical Siberian Iris. In botanical terms, Sino literally means from China.

Sino-Siberian irises are somewhat more demanding than your typical Siberian iris. They are less tolerant of poor soils, drought, and cold weather. With rich, acidic soil, plenty of water, and sun, you could be the first in your neighborhood to grow these rare irises.

Please see our Growing Instructions to make sure these unique and beautiful irises are the correct fit for your garden. Unfortunately, I am only able to guarantee these grow well for me. I am unable to guarantee they will do well for you.

Sino-Sib Berliner Riesen

(Tamberg, 1980) (55") Very tall and vigorous! Dark violet with a small, white butterfly signal. I. delavayi X I. clarkei

Sino-Sib Black Garnet

(Reid, 1996) (54", though does not grow this tall for me) Dark maroon with a near black fall spot. Gorgeous!

Sino-Sib Dotted Line

(Reid, 1992) (30") White ground heavily dotted and lined blue. Large white butterfly signal. Founders of SIGNA Medal winner!

If I could only grow one iris, this would be it. If you live in an area where Sino-Siberian iris can grow, you need to grow this one!

Sino-Sib McKenzie Bruiser

(Reid, 2001) (36") Bright medium blue with a near black signal. 2-3 branches with ample bud count for a long bloom season. Stunning!

Sino-Sib Miss Margaret

Offered for the first time in 2019!

(Carla Lankow, 2018) (36") Cream ground heavily flushed and veined magenta. Almost black center stripe extending over and outward from a bright gold signal. Absolutely stunning!

Carla and I selected this seedling from a large patch of Carla's seedlings. George came up with the name, declaring that Margaret needed an iris as beautiful as she named after her. George always was a flirt!


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‘I’ve have ordered a large number of iris over the past couple years from Cascadia. Patrick and Margaret have been stellar to work with. I’m very picky and they have been able to accommodate my requests and also keep me very well educated on iris culture. All of their iris I ordered were healthy and strong—every one came back the next year. The pictures of their iris are very accurate as well—no weird color treating. I will continue to work with CIG in the future! Thank you Patrick and Margaret!’

Jeremy M. Overland Park, KS

"I have purchased Japanese Iris from Cascadia Iris Gardens for the past 3 years. I have always received very healthy iris, whether I purchased them spring or fall. I have never been disappointed. That is why I always come back. I am looking forward to seeing their 2018 selection."

Linda M. Monroe, CT

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