Rent Shop Volunteer Join

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

Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

Need help with plant identification, visit the plant identification page.

 
rate this answer
2 ratings

Sunday - November 11, 2007

From: Lago Vista, TX
Region: Southwest
Topic: Pruning, Herbs/Forbs
Title: Winter trimming of Greggs mistflower
Answered by: Barbara Medford

QUESTION:

Do I cut my gregg's mist back to the ground for the winter or just leave it alone?

ANSWER:

We're assuming that you're referring to Conoclinium greggii (palmleaf thoroughwort). This is a sturdy native plant with a long blooming season, extending to November. It has an extensive root system, and will come up from the roots after the winter. In cases like this, we suggest waiting until you are sure the plant has finished blooming, and then cut the stalks down to about 3 inches from the ground. There usually will be a green leaf crown still growing close to the ground. These stalks left above the ground are just a marker so we know where to expect the mistflowers to start coming up in the spring.

 


Conoclinium greggii

 

 

More Pruning Questions

Over-trimmed junipers in Shell Beach CA
May 16, 2010 - Help! My husband decided to "trim" the juniper bushes that are in front of our house that create a great private front yard. I guess he cut back into the dead wood and now nothing is regrowing. It'...
view the full question and answer

Trimming of penstemon after bloooming from Austin
April 30, 2012 - I planted a penstemon in my backyard last fall and it's doing great. Once the flowers have bloomed, do I cut the stalk back? It is about 2 ft tall and doesn't appear to be doing anything. I belie...
view the full question and answer

Branching on plants
March 14, 2008 - Hi Mr SmartyPlants, I would like to cause my cerus peruvinesus (sp?) to branch low to the ground and another plant to branch higher up..what causes branching & how can I duplicate this?
view the full question and answer

Corkscrew willow damage to roof in Detroit, MI.
August 13, 2009 - I have a corkscrew willow (Detroit, MI) that is huge and whose branches hang on top of the asphalt shingles of my mobile home. It has now been discovered that these shingles, under the branches, are ...
view the full question and answer

Spring care for Garrya ovata from Pflugerville, TX
February 24, 2014 - Hello again, Mr. S-P, I planted a Mexican silktassel in April 2012 (purchased at the WFC). It has done well, but the leaves are bronzed and splotchy from this winter's freezes. All the stems are...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.