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
Not Yet Rated

Sunday - June 08, 2014

From: Austin, TX
Region: Southwest
Topic: Diseases and Disorders, Herbs/Forbs
Title: Problems with Copper Canyon Daisy from Austin
Answered by: Barbara Medford

QUESTION:

We had 3 copper canyon daisies. Two of them bloomed profusely last year, but only one has come back this spring. We cut them all back as instructed. When it was clear that two were not coming back, we pulled one of them and the roots seemed very much alive, but the above-ground wood was clearly dead. Why?

ANSWER:

Tagetes lemmonii  (Copper Canyon Daisy) is not listed in our Native Plant Database. This USDA Plant Profile Map shows it (with the plant code TALE) growing natively in Arizona. Searching the Internet on "Copper Canyon Daisy" we found this site from the Native Plant Society of Texas.

From that website, we noted this information:

"Commonly, Copper Canyon daisy blooms in both spring and fall. The main flowering period, however, is in late fall."

Just taking a guess, we are thinking that perhaps with the late severe cold snaps we had in Austin, that perhaps the upper part of the plant froze. The roots were protected by the warmth of the Earth, and just hadn't gotten around to pumping sap with nutrition and moisture up into the visible part of the plant. Plants will do that to protect themselves; if the roots freeze, the plant will die because it can no longer get that transfusion of nutrients that the roots have been saving for it. You did the right thing to trim off the upper part in the Fall last year but just jumped the gun a little this year expecting upper-plant growth.

From Floridata, here is more information on the reaction of this plant to cold weather.

 

More Diseases and Disorders Questions

Oak trees shedding leaves in Denton TX
May 27, 2012 - In Denton, TX we have two mature Quercus buckleyi. It is May 11th 2012 and one of these trees has been shedding green leaves for the last week. The only changes we have made are: planted English ivy...
view the full question and answer

Why is my recently planted Esperanza doing poorly in Texas City, TX?
May 28, 2010 - I have an Esperanza I planted about 2 months ago. It has been doing well, except today all but one stem of the plant is wilting and the leaves are rolling. I see no bugs on the plant. Any idea what...
view the full question and answer

Need some help with a Plumbago plant in Mission, TX.
August 06, 2010 - Hello..I live in south South Texas and have a plumbago. It gets about 4 to 5 hours of direct sun and lately some of the branches and leaves turn bright green almost yellow. Am I over watering or is ...
view the full question and answer

Damage to native elm in Texas
August 20, 2008 - We had a major landscape renovation done over the winter. One of the trees, an elm about 10 yrs old, remained in the bed although plants around it were removed. The tree has suddenly started turning...
view the full question and answer

Verticillium wilt in catalpa and maple
July 17, 2008 - On Monday - July 07, 2008, you answered a question about a catalpa and maple with the same problem--an entire branch died, and then more of the tree died. And both trees came from the same nursery. Th...
view the full question and answer

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