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 - April 01, 2008

From: Omaha, NE
Region: Midwest
Topic: Diseases and Disorders, Shrubs
Title: Reason for die-back of native Mahonia repens
Answered by: Barbara Medford

QUESTION:

I have several mahonia repens plants planted on my property. This is the third spring for them and I have noticed that they look like they might be dying out. The leaves have turned brown and are curled. Some of the plants have actually lost their leaves. Are they in fact dying or was it some kind of winter kill?

ANSWER:

Mahonia repens (creeping barberry) has medium water use. Overwatering and lack of water can both cause the type of damage you are asking about. According to the USDA Plant Profile on this plant, it is naturally located only in the northwest corner of Nebraska. Since Douglas County is on the eastern edge of Nebraska, there may be a soil issue involved. Mahonia repens does best in rich sandy, chalky or granitic soils, which may not be available in eastern Nebraska.

Mahonia is susceptible to rusts and leaf spots. Chlorosis (lack of iron) can be a problem in acidic soils. Leaf scorch may occur in winter, especially when plants are grown in exposed areas. Occasional insect visitors include aphids, scale and whitefly.

This University of Nebraska-Lincoln Extension County Offices website will give you contact information for the Douglas County extension offices, which can probably give you more definite information on the type of problem you are having, and whether it is something that can be fixed.


Mahonia repens

Mahonia repens

Mahonia repens

Mahonia repens

 

 

More Shrubs Questions

Small Shrub for a Foundation Planting in Michigan
May 15, 2014 - I need a small, native, perennial shrub for a foundation planting in Michigan.
view the full question and answer

Powdery mildew hits Rock Rose in Round Rock Texas
May 05, 2011 - My beautiful Rock Roses have gotten spots of white fuzzy "fur" on their leaves in the past month. This is not something they have ever had before and I'm worried its some kind of disease. Is it so...
view the full question and answer

Effective plant cover for utility boxes
June 15, 2007 - In Connecticut, we have utility boxes for underground electricity and cable located in front of our house. The builder has landscaped around them: first with rhododendrons and then azaleas and both ...
view the full question and answer

Transplanting American beautyberry in Cordele GA
May 19, 2014 - Is mid to late May too late in the season to transplant Callicarpa americana, American Beautyberry?
view the full question and answer

Shade-loving plants for birds in New Jersey
March 25, 2013 - What native plants should I add to my property, Zone 6, to feed birds naturally? I have a heavily treed lot, so I'd like names of shade loving perennials. Seed or fruit bearing options would be gre...
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