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

Thursday - October 31, 2013

From: Houston, TX
Region: Southwest
Topic: Diseases and Disorders, Herbs/Forbs
Title: Strappy leaves on rudbeckias from Houston
Answered by: Barbara Medford

QUESTION:

My Rudbeckias keep sending up odd shoots with strappy leaves on them. Should these be cut off? What is their purpose?

ANSWER:

There are 20 members of the genus Rudbeckia and family Asteraceae (aster) native to North America, 14 of which are native to Texas. Three of those are found growing natively in and around Harris County. Since we don't know which ruckbeckia you have, we will choose Rudbeckia maxima (Giant coneflower) as a representive example. Below are three pictures from our Image Gallery. The first is of the bloom, the second of the rather oval-shaped leaf and the third of slightly more "strappy" looking, longer and more slender leaves. So, it could simply be a matter of your perception of what is a properly shaped leaf for this plant.

However, if you will follow the plant link above to our webpage on this plant, you will see this line:

"It should be cut back to the base after blooming to keep tidy and be planted in mass for best effect in landscapes."

Since the plant blooms from July to September, you might as well cut all the stems back, as we recommend for most perennials, and not worry about whether to cut back the ones that you feel might be abnormal.

 

From the Image Gallery


Giant coneflower
Rudbeckia maxima

Giant coneflower
Rudbeckia maxima

Giant coneflower
Rudbeckia maxima

More Herbs/Forbs Questions

Is horseherb toxic to chickens in Austin, TX?
November 05, 2012 - My yard is almost completely horseherb (straggler daisy, calyptocarpus vialis) and I am hoping you can tell me if this is safe for chickens to eat? As common as it is here, there is nothing I could fi...
view the full question and answer

Trees for cutout in driveway in Houston
November 12, 2010 - I live in central Houston. I have a new driveway with a cutout of 4' x 8'. I would like to plant a shade tree that will not break up the concrete. What do you recommend?
view the full question and answer

Turf grass for part-time home from Louisville KY
April 28, 2012 - We have a small yard at a remote location with cistern water, and need a turf grass for a yard, clay soil, which I am willing to amend. It will receive sporadic attention as my husband and I do not l...
view the full question and answer

Locating ruda plants in Florida
January 24, 2009 - Where I can find or who sells Ruda plants? in the Miami, Florida area ?
view the full question and answer

Pruning practices from Austin
May 16, 2013 - I need to do some pruning in my front beds and I know nothing about plants. From what I have been able to identify I have bicolor irises, plumbago, Japanese Aralia. I don't even know where to begin o...
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 | STAFF
© 2015 Lady Bird Johnson Wildflower Center