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 - February 09, 2010

From: Austin, TX
Region: Southwest
Topic: Non-Natives, Herbs/Forbs
Title: Dietes bicolor(Bicolor Iris) winter-hardiness in Austin
Answered by: Jackie OKeefe

QUESTION:

I have many bi-color irises (dietes bicolor), the freeze in Austin turned them brown. Can I trim them back without harming the plants? If trimming is acceptable, can you give me tips?

ANSWER:

Dietes bicolor(Bicolor Iris) , an African native which is rated to zone 8B (15 to 20F), isn't wintering so well this year in Austin and yours are among many that have frozen to the ground.  This answer was recently given to a similar query. In my central-Austin neighborhood they are sprouting new greenery already, but I would either wait to cut them back, or mulch after doing so to protect the tender new growth until we are past danger of another hard freeze.

 

More Non-Natives Questions

Grafting stone fruit
April 02, 2009 - Do you know of anyone grafting the new low chill stone fruit trees to the Mexican plum to minimize cotton rot? Or would it even work?
view the full question and answer

Identification of a tree in Florida with bell-shaped red flowers
November 23, 2012 - A friend in Florida has asked about identification of a tree with a flower none of us have ever seen. It starts with a green pod, then flowers into, what looks to me like a Chinese lantern, or bell. I...
view the full question and answer

Yellowing leaves on non-native Hibiscus rosa-sinensis
July 03, 2006 - I purchased a chinese hibiscus hiros small tree and after 1 month the leaves keep turning yellow. What's wrong? It's in a large pot and never outside below 60 degrees. Thanks.
view the full question and answer

Specifications for a property in Corning CA
March 29, 2012 - Drought resistant, deer resistant, low growing (ground cover), and shade tolerant request: I am looking for a variety of species that not only fit the above preferences, but also a few other things. ...
view the full question and answer

Identification of red/yellow/black flower in California
April 15, 2013 - Plant found, April Mount Diablo CA 6 symmetrical petals red with a pattern of a yellow flower with black edge in the centre, I can not identify, please help.
view the full question and answer

Smarty Plants's Facebook profile Support the Wildflower Center by Donating Online or Becoming a Member today.

Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP
© 2014 Lady Bird Johnson Wildflower Center