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

Saturday - April 28, 2012

From: Spicewood, TX
Region: Southwest
Topic: Non-Natives, Problem Plants
Title: Eliminating KR? Bluestem from St. Augustine Yard in Spicewood, TX
Answered by: Mike Tomme

QUESTION:

How can I eradicate bluestem grass invading my St. Augustine lawn?

ANSWER:

The short answer is that your best bet is to get out there and dig up the offending plant.

This is kind of an awkward question for Mr. Smarty Plants since the mission of the Lady Bird Johnson Wildflower Center is to promote the use of native plants and it appears that you have a situation where one non-native species is invading another non-native species.

You don't specifically identify the bluestem you are having a problem with, but Mr. Smarty Plants suspects you are talking about King Ranch bluestem (Bothriochloa ischaemum var. songarica), frequently referred to as KR bluestem or KRB.

KR bluestem was introduced from Europe and Asia, and has greatly increased its range by cultivation for livestock forage and as an inclusion in seed mixes used to stabilize roadsides by highway departments. When it was introduced in the 1920s and 1930s it was seen as a desirable species for erosion control since it is drought resistant and quickly establishes itself. This plant is now considered an invasive species and its presence threatens the abundance and diversity of native species.

St. Augustine is also non-native that has been imported from tropical regions.

Here is another Mr. Smarty Plants answer to a similar question with a link to an even earlier answer that goes into some detail about eliminating KR. You'll see that the methods discussed are probably not practical in a home yard, so back to the digging.

 

More Non-Natives Questions

Protecting a non-native Meyer Lemon from Freezing in Austin
January 05, 2013 - What is the best way to protect my Meyer Lemon tree from freezing Austin weather? It has been planted in my yard for 1 year and is about 4 feet high
view the full question and answer

Shade tolerant plants for privacy from Larchmont NY
April 19, 2014 - Love your site! We have a 4'x4'x50' stone wall, full sun, with a planting bed 30"H by 24"D. We're looking for privacy, so a hedge with pruning is needed. We have looked at Ilex Crenata (8'),...
view the full question and answer

Non-native Bird of Paradise plant (Strelitzia reginae)
November 30, 2008 - I have two Bird of Paradise plants on my lanai (Marion County, FL) and they are both in large pots. Nobody but me seems to like them at my house and I have been asked if I could trim all the leaves o...
view the full question and answer

Problems with non-native Chinaberry tree from Tucson AZ
September 05, 2013 - I have a 30+ year old Chinaberry tree and this year the branches are much sparser with leaves and there are a lot of small dead branches. Should I fertilize and what should I use? Thank you
view the full question and answer

Care for non-native Plumeria from Concord NC
August 01, 2012 - I have had my plumeria plant for the past 5 to 7 years. It is a pot plant and I live in North Carolina, I take the pot inside in he winter time. The leaves fall off, in the spring after the last fro...
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
© 2014 Lady Bird Johnson Wildflower Center