Host an Event Volunteer Join Tickets

Support the plant database you love!

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

Wednesday - June 27, 2007

From: Austin, TX
Region: Southwest
Topic: Diseases and Disorders, Herbs/Forbs
Title: Restoration of mistflowers suffering from wet season
Answered by: Barbara Medford

QUESTION:

I have planted gregg's mistflower in a bed that receives morning sun and afternoon semi-shade. It was beautiful and covered with blooms and butterflies this spring, but suddenly has become brown and sick looking near the roots and stopped blooming. Should I cut it back to the ground, or just leave it rank looking?

ANSWER:

As I note you are in Austin, you are aware that we have had a very unusual, rainy Spring. We have, in fact, already had more rain than is normal for the whole year. Conoclinium greggii (Gregg's mistflower or palmleaf thoroughwort) is a native of this area and, thus, is probably pretty shocked by all that water on its feet. Many plants of this sort require good drainage, which may mean a raised bed, or at least a soil that water can drain through before the roots of the plants in it drown. However, it's a little late for that for your mistflowers now.

I have always believed that you should never waste a root. First, of course, go ahead and trim back the long, lanky stems and dead flowers, but be sure and leave as many healthy-looking leaves as possible. Hopefully, as the rains come to an end and normal summer dryness sets in, the roots will be able to recover, but they must have leaves for nutrition. Since this plant blooms well into the Fall, perhaps dryer weather will permit it to attract the butterflies again this year. If it does not bloom again this year and appears alive but not flourishing, you might consider transplanting it to another spot where the soil will drain better, but still with the morning sun and afternoon shade you have been giving it. Always transplant in cooler weather when the plants are more dormant. Texas native plants tend to be pretty tough and we can hope these mistflowers will rise to bloom again.

 

From the Image Gallery


Gregg's mistflower
Conoclinium greggii

More Diseases and Disorders Questions

Problems with Copper Canyon Daisy from Austin
June 08, 2014 - 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...
view the full question and answer

Getting rid of algae on dirt and patio
January 12, 2011 - Algae and on patio and dirt, and how to get rid of same?
view the full question and answer

Live oak leaves not dropping from Austin
April 29, 2014 - We had a 65 gallon live oak planted last October. We watered it regularly and it was green all through the winter. In March the leaves started to turn brown but never dropped, as they should have. ...
view the full question and answer

Cotton root rot in Purple Sage, Leucophyllus frutescens
November 09, 2005 - We had three Purple Sage shrubs in our front yard. They did very well for about three years and then this past year they just died. From what I have read they are pretty hardy so we are really stum...
view the full question and answer

Cupressaceae dying in Suffolk Co.NY
October 20, 2012 - I have noticed that all of my Cupressaceae (& others I see in my area) are dying. They turn yellow, then rust & brown til they are everbrowns. what is going on?
view the full question and answer

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