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

Thursday - December 15, 2011

From: Leander, TX
Region: Southwest
Topic: Planting, Seeds and Seeding, Grasses or Grass-like
Title: When to seed a native grass lawn in a drought area?
Answered by: Guy Thompson

QUESTION:

I want to plant a native grass lawn. It is raining now. Can I plant it in December? It might not be raining in the spring if the drought continues.

ANSWER:

Many of our favorite grasses, such as Schizachyrium scoparium (Little bluestem), Bouteloua curtipendula (Sideoats grama),Bouteloua gracilis (Blue grama) and Bouteloua dactyloides (Buffalograss), are so-called warm season grasses, meaning that they need a soil temperature of 55 to 60 degrees for some days in order to germinate.  For this reason seed distributors give them any pretreatment that they might need, such as cold exposure, and then recommend that they be planted in spring. 

On the other hand, in nature these grasses produce their seeds and drop them to the ground in the fall.  The seeds lie there dormant over the winter and germinate the following spring. So they have evolved the ability to survive low temperatures.  But during this time several things could happen to the seeds, some of them bad.  They might be eaten by birds, small mammals, or ants.  Erosion could carry them away. On the positive side, some of them experience that time at low temperature needed to prepare themselves for germination.

Now consider the other requirement for germination and growth - moisture.  Grass seeds need continuous soil moisture during their germination and enough additional moisture to form an efficient root system.  Most locations can count on spring rains just in time to provide that needed moisture.  But sometimes, such as in Central Texas last year, the rains don't come, and seeds do not germinate.  A similar condition in 2012 has been predicted, and that is what prompted your question.  Many of us have pondered the same question.

I'll tell you what I did.  I am converting part of my St. Augustine lawn to native grasses.  After killing the St. Augustine, I will wait to till the soil and plant seeds in the spring.  This is safe because I can irrigate that plot while the grass seeds are germinating and becoming established.  I have cleared another area of juniper and wish to replace the trees with grass there.  That area is outside the reach of my irrigation.  I decided to plant the seeds in November and take what losses to predation, etc. I must in order to gain the benefit of winter rainfall.  There will hopefully be a series of days warm enough to permit seed germination.  If not, the seeds (at least some of them) will still be there in the spring.

So I suggest that if your lawn can be irrigated, wait for the ideal spring temperatures for germination and keep the soil moist.  If you cannot irrigate, go ahead and plant as soon as possible so that the winter rains, such as we are having at this time, will give the grass a chance to get started and be able to survive a possible drought next summer.

 

 

More Grasses or Grass-like Questions

Winter care of native perennials in Austin
October 19, 2008 - Last spring I planted some wildflowers suggested by Deryn Davidson. they did extremely well. I planted-Gulf Muhly,Big Muhly,Red Yucca,Purple Cone Flower,Wine Cup, Large Buttercup And Mealy Blue sage, ...
view the full question and answer

Erosion at edge of driveway in Abilene TX
August 26, 2011 - My lawn suffered a great loss of grass over the winter and the soil at the edge of the driveway is washing away with watering and the occasional rains that we have. I am trying to get the grass to gr...
view the full question and answer

Will Habiturf thrive in Houston?
July 31, 2012 - Will Habiturf grow in partial sun? My lawn is surrounded by trees so that there is only about an hour each day with direct overhead sun. The rest of the day there is a light shade.
view the full question and answer

Advice about buffalo grass lawn in NW Arkansas
June 10, 2014 - I am determined to grow a native buffalo grass (bouteloua) lawn in Northwest Arkansas. My question is this: I am considering mixing an annual rye into the bouteloua seed mix for the purpose of quick, ...
view the full question and answer

Plants for a pool fence in Ohio
October 28, 2010 - I live in Ohio and have a pool with a white vinyl fence. Each year I plant sunflowers around it, but they are so messy when the birds/bees find them. Previously I planted castor beans, however, they...
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