Contact Us Host an Event 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
4 ratings

Saturday - March 24, 2007

From: Orlando, FL
Region: Southeast
Topic: Compost and Mulch, Soils
Title: Care of Ixora by lowering soil pH
Answered by: Damon Waitt

QUESTION:

I have a bunch of Ixoras that the leaves are turning brown, before I pull them out, is there any kind of treatment to save them? I have used insecticidal soap several times but there has been no improvement. Thanks.

ANSWER:

Your problem may not be insects. According to the U.S. Department of Agriculture, Cooperative Extension Service, University of Florida, IFAS, Florida A. & M. University Cooperative Extension Program, Ixora are acid loving plants requiring organic matter such as compost, peat moss, or composted manure to lower soil pH. Alkaline soils can result in poor health and poor foliage. To learn more, read about Ixora care on the IFAS Extension website.

 

More Compost and Mulch Questions

Time to mulch without inhibiting seeds in Hitchcock, TX
March 17, 2010 - When would be the best time of year to put down mulch, if I want my native plants to re-seed? I don't want to bury the seed under mulch layers or new dirt. Thank you.
view the full question and answer

Suitability of Carolina Cherry Laurel for Bulverde TX
October 24, 2012 - The local Home Depot is selling Carolina Cherry Laurel Trees. They look beautiful. Is this a good tree for Bulverde TX..20 miles north of San Antonio? Can it survive? Will it be a high maintenance...
view the full question and answer

Seed regrowth through mulch
September 06, 2007 - Hi Mr. Smarty Plants: I have planted a perennial and wildflower garden and would like to put mulch down to control the weeds and retain moisture. Will the plants that drop their seeds be able to re- ...
view the full question and answer

Native grass for caliche soil in Austin
February 06, 2010 - I am interested in using native grasses in part of my lawn per the recent article on these from the Wildflower Center. The problem is I live W. of Austin where there is very little top soil and calic...
view the full question and answer

Failure of tall garden phlox buds to open in St. Louis MO
July 30, 2009 - Why won't the buds of my tall garden phlox open? Plants are apparently healthy, no powdery mildew or visible insects, foliage looks great and buds are profuse but they don't open. I have two clumps ...
view the full question and answer

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