En EspaŅol

Q. Who is Mr. Smarty Plants?

A: There are those who suspect Wildflower Center volunteers are the culpable and capable culprits. Yet, others think staff members play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.

Help us grow by giving to the Plant Database Fund or by becoming a member

Did you know you can access the Native Plant Information Network with your web-enabled smartphone?

Share

Ask Mr. Smarty Plants

Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

Search Smarty Plants
    
 
See a list of all Smarty Plants questions
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.
Need help with plant identification, visit the plant identification page.
 
rate this answer
Not Yet Rated

Tuesday - June 08, 2010

From: Pickerington, OH
Region: Mid-Atlantic
Topic: Propagation, Pruning, Herbs/Forbs
Title: Trimming iris leaves in Pickerington OH
Answered by: Barbara Medford

QUESTION:

I recently trimmed the stems and leaves of my iris plants in late May - I realize now this was a bit early. The leaves are still about 3-4" out of the ground. I would like to half them and move some to another garden and also put mulch down on the garden. Should I mulch now and wait until fall to half and move the plants? Should I go ahead and move the plants now? Have I killed the plants by trimming them to early? Is there anything I should do in order to try to save the plants if trimming them early was detrimental? I'm not good at gardening and these were actually iris my mom planted about 10 years ago. She will be very mad at me if I killed them all just because I got a little zealous trying to "clean up" the garden. Please help!

ANSWER:

Iris seem to be pretty self-sufficient, and we wouldn't worry too much about all the particulars. First, no, don't move the tubers now, wait until early Fall. Second, no, don't mulch them. Those tubers need to be partially exposed to the air. In future, you should wait until the blades or leaves start looking frowsey, then trim them back. The leaves will die back in the winter anyway, and you can pull off the dead blades when you do your Fall cleanup. It is very possible they will grow new leaves even now. We don't know if you have an iris native to North America, but figure you probably have a "bearded" iris, Iris germanica which is native to (surprise!) Germany. There are a few irises native to North America and 6 native to Ohio, which we are listing below with some illustrations. If you feel that is what you have, you can follow the links to our webpage on those irises and learn more about their care.

Irises Native to Ohio:

Iris brevicaulis (zigzag iris)

Iris cristata (dwarf crested iris)

Iris verna (dwarf violet iris)

Iris versicolor (harlequin blueflag)

Iris virginica (Virginia iris)

Iris virginica var. shrevei (Shreve's iris)

From our Native Plant Image Gallery:


Iris brevicaulis

Iris cristata

Iris verna

Iris versicolor

Iris virginica

 

 

 

More Herbs/Forbs Questions

Riverbank Plants for Minnesota
September 04, 2013 - I would like to stablize a steep riverbank slope along the Upper Mississippi in St. Cloud MN. The slopes are almost 1:1. We are using an open cell concrete matt in which we are going to plant native...
view the full question and answer

Competition between peony and bulbs
November 06, 2015 - I am planting 3 herbaceous peony bare roots 3 feet apart from each other. I am told it will take 3 years before I get blooms. In the meantime, can i safely plant springtime flowering bulbs in th...
view the full question and answer

Problems with sunflowers in Florida
November 03, 2006 - I planted sunflowers on the west side of my house where I have previously planted them and they grew wonderfully. These new ones, however, seem to be dying, (less than 2 weeks). I bought the plants at...
view the full question and answer

Interesting native orchids in MS.
August 21, 2012 - I have a stand of 18 Cyp. parviflorum orchids which I tell only few people about. I've been an hobby grower for over 15 yrs. Recently, I noticed I has some Spiranthes growing which thrilled me. Now, ...
view the full question and answer

Wildflowers for an Indiana septic drain field
August 29, 2015 - We just had to have a septic system replaced due to our state highway consuming some of our front yard along with our original septic. Since this has happened, our lateral lines now lie in our back ya...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP | STAFF
© 2016 Lady Bird Johnson Wildflower Center