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

Wednesday - February 03, 2010

From: San Antonio, TX
Region: Southwest
Topic: Wildflowers
Title: Pink evening primrose in San Antonio
Answered by: Barbara Medford

QUESTION:

We purchased the Lady Bird Johnson Wildflower Mix from the Native American Seed Co. last year. It included Pink Evening Primrose. Their colonization has gone extremely well -- so much so that it is taking all the space in our wildflower area and not leaving room to plant other wildflower seeds (Indian blanket, etc.) Will other wildflowers come up naturally in the midst of the colony of primrose? If not, what can be done to thin or control the primrose colony to allow the planting of other seeds?

ANSWER:

In "Just for Texans" in the Collections Section, there is a list of the plants that have seeds in the Lady Bird Legacy Mix. You can go to that list and follow each link to the page on that wildflower to learn when it blooms, and what it needs to prosper. Of these, 8, including Lupinus texensis (Texas bluebonnet) and Castilleja indivisa (entireleaf Indian paintbrush), are annuals and 4, including Oenothera speciosa (pinkladies) and Callirhoe involucrata (purple poppymallow) are perennials. For all of them, the predominant blooming season is March to May, but the evening primrose blooms from February to July and is semi-evergreen, making it something to look at in the wildflower garden when other plants are fading. 

All of this is to say that, in Nature, this sort of problem kind of takes care of itself. The wildflower mix you are referring to was very carefully chosen, we're sure, to emulate the wildflower meadows Central Texas is famous for. However, evening primroses can be sneakily invasive; when they are dormant in the winter or during a hot, dry summer, the roots will still be spreading and new plants can pop up where you didn't expect them. About the best advice we can give you is to allow plants to bloom and then pull them out before they go to seed. Individual flowers only last one day, but you can keep an eye on them and when seed pods begin to appear, out they come. Since it is a good, long-blooming groundcover plant, we would certainly recommend that you leave some, and not try to exterminate them. Then, after noting what plants from the Mix are or are not coming up, you might choose to reseed only with the individual seeds of the particular plants you are missing. You didn't say how long you have had your wildflower garden, but we're sure you know that new seeds should be planted in the Fall. With any seed mix, you take your chances on what will do well in the space and what will not. Even the annuals in the mix will self-seed and return without further seeding, so additional over-seeding is best used to add diversity. If some species do not do well, or even come up, two years in a row, you might consider the soil and growing conditions each prefers. 

Species in the Lady Bird Legacy Wildflower Mix from our Native Plant Image Gallery:


Castilleja indivisa

Callirhoe involucrata

Coreopsis tinctoria

Echinacea purpurea

Eustoma exaltatum ssp. russellianum

Gaillardia pulchella

Glandularia bipinnatifida

Lupinus texensis

Monarda citriodora

Oenothera speciosa

Phlox drummondii

Rudbeckia hirta

 

 

 

More Wildflowers Questions

Healthy native plants supporting local economy from Tacoma Park MD
February 17, 2012 - I am collecting information on how healthy native plant communities can support the local economy. Do you think the Texas bluebonnets are a good example of this in Texas? For example, do you know ma...
view the full question and answer

Wildflower seeds to be sown on roadway for wedding
September 16, 2005 - My daughter is planning an outdoor wedding reception at a ranch in Granbury, Texas, on April 29, 2006. We would like to sow wildflower seeds along the roadway leading to the ranch. What flowers woul...
view the full question and answer

Native plant initiatives for universities in Southeast U.S.
April 26, 2005 - Hello, I am an undergraduate student majoring in botany at Tennessee Technological University in Cookeville, TN. I am a native plant enthusiast and would like to promote n.p.'s on campus. Do you kn...
view the full question and answer

Locales for photographing wildflowers in Dallas, TX area
April 17, 2007 - My daughter has a project for school where she has to find and take her picture with 20 different Texas wildflowers and identify them. We have found some of the more common ones, but I was wondering ...
view the full question and answer

When do you put out bluebonnet seeds in Bastrop, TX?
April 17, 2012 - When do you put out bluebonnet seeds?? I hear fall but don't the seeds pop out of dried up plants in early summer?
view the full question and answer

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