En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Do pecans and bluebonnets only bloom every other year from New Braunfels TX

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
1 rating

Wednesday - November 03, 2010

From: New Braunfels, TX
Region: Southwest
Topic: Propagation
Title: Do pecans and bluebonnets only bloom every other year from New Braunfels TX
Answered by: Barbara Medford and Joe Marcus

QUESTION:

Is it true that bluebonnets only seed every other year? I know we see bluebonnets every year, so this is quite a mystery to us. Also, is it the same with pecan trees?

ANSWER:

For Carya illinoinensis (Pecan), the answer is partially, yes.  Native pecans and many older cultivars typically bear heavy crops only every other year.  This is true for many nut-bearing trees.  However, some newer cultivars, such as 'Hopi', bear heavy crops every year. 

In the case of  Lupinus texensis (Texas bluebonnet), no. The bluebonnet is an annual plant. By definition this means the plant must live out a full life cycle in under 12 months, every year. The seeds fall from the seed pods (or are squirted up to 20 ft. away by "explosive dehiscence") and lie in the soil until the conditions are right for germinating, which may be 60 days or 5 years. Those seeds that are viable and sprout produce rosettes about Christmas, and begin to show blooms late in February. About 6 weeks of furious blooming, the seed pods begin to form, and the cycle begins again. Every living organism's Prime Directive is to reproduce itself, and the way it is timed has everything to do with how long that plant will live, how long it has to reproduce.

From our Native Plant Image Gallery:


Carya illinoinensis


Carya illinoinensis


Carya illinoinensis


Carya illinoinensis


Lupinus texensis


Lupinus texensis


Lupinus texensis


Lupinus texensis

 

 

 

More Propagation Questions

Plants native to Galveston that would survive in Austin
December 01, 2008 - What plants are native to the Galveston, Texas region? Can any of those plants survive in the Austin area?
view the full question and answer

How to tell the girls from the boys in wax myrtles (Morella cerifera)
May 14, 2010 - How would I be able to identify whether my wax myrtles are male or female plants? I was given two plants last fall (that came from a family members back yard) and the person who gave them to me didn'...
view the full question and answer

Pollination of blackberries in Lake Winnebago, MO
May 27, 2010 - Not sure if blackberries are native, but my daughter got a start of one at a plant exchange at the nature center. Do we need more than one for it to pollinate correctly? We have strawberries growing i...
view the full question and answer

Propagation of rain, oxblood, and copper lily bulbs
November 30, 2012 - I have Rain Lily, Oxblood Lily, and Copper Lily bulbs out of the ground, that are putting out some green growth. I would like to plant them soon. Is it okay to plant now and in December, or do I hav...
view the full question and answer

Possibility of growing Buckleys yucca in South Carolina
February 03, 2008 - I live in Lexington, SC. I am wondering if I can grow Buckley's yucca (yucca constricta) here and if so, where can I purchase the seeds or plants? I am from Texas and we are trying to create a "we...
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