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
2 ratings

Thursday - April 12, 2012

From: Smithville, TX
Region: Southwest
Topic: Seeds and Seeding, Wildflowers
Title: Time to mow bluebonnets from Smithville TX
Answered by: Barbara Medford

QUESTION:

When is the best time to mow the seeded Bluebonnets? I have them and Drummond Phlox in my front yard. I need to clean and trim to start pulling the large numbers of Purple Hooked Sandburr.

ANSWER:

If you want the plants to reseed themselves or to harvest the ripened seeds, the answer is: not yet. Read our article How to Grow Bluebonnets that will explain at what stage the seeds will be ready. You can harvest them or let them fall on the ground naturally, or "explode"  them out of the dried pod to several feet away. In any case, they should not be removed from the plant until the pod is dry and ready to let go. See pictures below. From that article:

"Do not mow until the plants have formed mature seedpods. Bluebonnet seeds usually mature six to eight weeks after flowering. When mature, the pods turn yellow or brown and start to dry. By mowing after the seeds have matured, you will allow the plants to reseed for next year."

 

From the Image Gallery


Texas bluebonnet
Lupinus texensis

Texas bluebonnet
Lupinus texensis

Texas bluebonnet
Lupinus texensis

More Seeds and Seeding Questions

Dill-like plant in veggie garden in California
September 28, 2011 - I have a plant that appeared in my veggie garden. Looks like dill in spring when green, but the leaves smell more like turpentine! Now, 4-5 foot tall, brown, it produces lots of small, oval - not cr...
view the full question and answer

Inquiry about the Arizona Cypress trees in the Family Garden
March 20, 2015 - Dear Mr. Smarty Plants, I recently visited The Wildflower Center and enjoyed seeing several features that were new since my last visit two years ago. In the Family Garden areas I saw several beautifu...
view the full question and answer

Latest time to mow bluebonnets from Chappell Hill TX
February 13, 2014 - The past few years, my bluebonnets have been overwhelmed by tall grass. I could have solved this by mowing later, but I was always afraid of mowing new bluebonnet plants. When is the latest time I can...
view the full question and answer

Seed for Kosteletzkya virginica, salt marsh mallow
January 13, 2009 - I have a nursery in North Carolina. We are looking for a reliable seed source for kosteletzkya virginica salt marsh mallow. We are www.campbellfamilynursery.com
view the full question and answer

Mexican Sycamore trees grown from seed
November 15, 2011 - If someone is selling an alleged Mexican Sycamore grown from a seed harvested from a mature tree growing in Austin, is it likely to be a TRUE Mexican Sycamore -- or has it most likely been pollinated ...
view the full question and answer

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