From:Austin, TX Region: Southwest Topic: Wildflowers Title: Hardiness of bluebonnet seeds under water and white bluebonnets Answered by: Nan Hampton
I was trying to find out more about the hardiness of bluebonnets. We own a lot on Lake Travis near Spicewood Texas. As you are probably aware, the lake was very low this spring due to a drought that started in late 2005. One unexpected benefit of the drought was a massive growth of bluebonnets in the shoreline area that is almost always under water. It amazed me that the seeds/plants would survive being inundated for such long periods of time and then spring forth in the most dense growth of blue bonnets I’ve ever seen. If you’d like to see the photos, I’d be glad to share them. Each photo file is quite large because I took them with a 10 Mega pixel camera. We also had a white blue bonnet that we found in Spring 2005 in an area away from the shore line and found in the exact same place in 2007. Interestingly there are no other white bluebonnets in that area nor did we find them in the massive growth that was along the shoreline.
Thanks for being available for these inquiries.
Bluebonnets are annuals; that is, they have to come up from seed each year. Was the area underwater last summer when bluebonnets were going to seed? If there were bluebonnets blooming in the same general area last year, it is more than likely that seeds from last year's crop produced the plants blooming this year. Bluebonnet seeds are dispersed mechanically when the dry seed pods burst and fling the seeds out. They can travel by gravity downhill if there is no vegetation in the way. Also, rain could wash them downhill. I don't believe that the seeds could survive longterm submersion in water, but it is possible that some seeds floated in from another area and were deposited as the lake receded.
Please see the answer to a recent question for a discussion of white bluebonnets.
More Wildflowers Questions
Volunteer bluebonnets in Farmville VA May 17, 2010 - I have two small Texas bluebonnet plants that came with no instructions as to how to plant them regarding soil or sun. Everything I read has to do with seeds, can you please help me?
Thank you. view the full question and answer
Flowering annuals for Dallas TX March 26, 2009 - 1. What Non-wildflower flowers (flowers that WILL bloom first year/within first 2-3 months after plant seeds)are recommended for Dallas, TX area that could tolerate part-shade, part-sun area?
2. What... view the full question and answer
When and where are the bluebonnets blooming from Canyon TX? March 18, 2012 - Where can we get reports on when and where the bluebonnets are blooming?
view the full question and answer
Dispersing seeds for wildflowers in New Mexico October 08, 2007 - Here, in Santa Fe, NM, we have lots of beautiful wildflowers. What is the best way to propagate them? Can I just disperse the seed on my acreage after blooming? There is purple aster and sunflowers... view the full question and answer