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Iris Pseudocorus

Tuesday, June 26, 2012

Some years ago I planted a nursery pot of these because I liked the yellow color. It got maybe 3-4 blooms each year, but the foliage slowly spread a bit. I blamed the lack of blooms on the soil which is very sandy and usually dry there.

A few years ago I learned that the plant is considered invasive in wetlands. I wasn't concerned due to my dry soil. Last year I gave a shovel full of Virginia Bluebells to my next door neighbor, Elaine, along with a bit of the above Iris. I did warn her about the invasive bit. Both bloomed this spring! A successful transplant!

Last evening, I was prying up some rocks that had sunk below the dirt along a curved pathway. To my dismay, I saw a mass of reddish rhizomes along the back of the sunken rocks. It was the iris!

Today I spent four hours digging out the mass of rhizomes, helped by a jet of water from the hose to wash away the soil. They even had tunneled below a shiny mass of European Ginger and a light blue transcantia. I couldn't dissect them in place, I ended up taking the entire 12" x 18" mass of them out. At the other end of the iris, the rhizomes had tunneled under another 15" of a blooming dwarf hosta. That, too, had to be taken out entirely!

I will try to save some of the European Ginger, it is my only patch and has beautiful dark green glossy leaves. The batch under the hosta will be tossed, I have plenty of that. emoticon emoticon emoticon emoticon emoticon

Lesson learned - this Iris Pseudocorus is invasive in ALL soils, regardless of moisture or lack thereof. I will have to tell my neighbor tomorrow and dig out her small bit! emoticon
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Member Comments About This Blog Post
    Wow, who would have thought that it would happen in the sandy soil and Minnesota winters. Too bad it made all the extra work for you. Hopefully you got everything out before it went overboard.
    2182 days ago
    Sunny you are a worker.
    2183 days ago
  • DR1939
    When I moved northward I found some things were invasive that were not considered so in the more southern areas.
    2183 days ago
  • _LINDA
    Very sorry you had all this trouble :(( Imagine, one tiny little plant could cause so much work :(( Good you caught the neighbor's before hers had the chance to spread.. I hope your Ginger survives, that sounds lovely.. I love coming to your page to see your garden background :) If you change or add things, how about an updated photo?
    Hope you can relax and enjoy the rest of your day!
    2183 days ago
  • LIS193
    That's a lot of unexpected work!
    2183 days ago
    2183 days ago
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