Iris Cristata- Blue Form

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Shepard
Title: Member
Joined: 2010-03-26
Iris Cristata- Blue Form

I have had this for several years, and it has not bloomed.  I have never had an Iris that didn't bloom.  Any recommendations? 

BTW, I have it in three different locations, all with different sun locations.  I have not had it in shade, or semi-shade.  Soil is quick draining. It has not been fed.

Mark McD
Title: Moderator
Joined: 2009-12-14

Hello Shepard, i'm guessing that you have your Iris cristata planted in too sunny and quick draining a spot. This is a terrific woodland Iris, it will take lots of sun but does best in half shade at least, or even full shade, planted in humus-rich soil, although with the horizontal rhizomes right at or above the soil surface. The 1st photo here is a cultivar of Iris cristata named 'Edgar Anderson', a robust selection of this fine crested Iris. The 2nd photo shows the surface rhizomes of Iris cristata taken just a week ago on Jan 31st, 2016, before being buried in snow again, but it shows how the rhizomes want to be at the surface and not buried.  

 

Iris cristata 'Edgar Anderson'
Iris cristata surface rhizomes, Jan 31st, 2016.

Mark McDonough Massachusetts, USA, near the New Hampshire border USDA Zone 5 antennaria at aol.com  

Shepard
Title: Member
Joined: 2010-03-26

Thank you, I have a much better area in the back area of my rock garden.

RickR
Title: Moderator
Joined: 2009-09-21

I don't know where you are, but I am in Minnesota and if you would still like to have that type of iris in the sunnier/drier locations, I find that Iris lacustris does better than cristata for me.  My clone came from Heronswood long before it was sold, but there are plenty of cristata sold out there posing as lacustris.  If you would like, I can send you a start of it in spring. 

Rick Rodich    zone 4a.    Annual precipitation ~24 inches near Minneapolis, Minnesota, USA

Shepard
Title: Member
Joined: 2010-03-26

Wow, I  divided the Iris Cristata into four clumps.  Two are blooming,  thank you.  Wish I knew how to post pics, any advicel.  Cecile

RickR
Title: Moderator
Joined: 2009-09-21

Very glad things are working out for you!

 

Look here for click by click directions to embed photos within the text area.  Most of us do it this way.  Note that step #6 is optional.

https://www.nargs.org/forum/faq-how-add-images-post-embedded-style

 

The other way is to add a photo that will only appear at the end of your message.

https://www.nargs.org/forum/faq-how-add-images-post-attached-style

 

Rick Rodich    zone 4a.    Annual precipitation ~24 inches near Minneapolis, Minnesota, USA

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