Native Plants
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.
Did you know you can access the Native Plant Information Network with your web-enabled smartphone?
Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.
rate this answer
Thursday - May 28, 2015
From: Dripping Springs, TX
Region: Southwest
Topic: Diseases and Disorders, Soils, Herbs/Forbs
Title: Failure of TX bluebonnets to thrive
Answered by: Guy Thompson
QUESTION:
We have had extraordinary luck with bluebonnets growing in our driveway of decomposed granite--until last year and this year. The bluebonnets seem to be drying up and wilting away. The ones in other areas around our house seem to do well - front flowerbeds, herb garden, and just about everywhere that seeds land -- except in the driveway. I was told at the Natural Gardener that bluebonnets don;t do well in decomposed granite, and that I should check with the Lady Bird Wildflower Center for confirmation. What do you think?ANSWER:
When viewing vast fields of Lupinus texensis (Texas bluebonnet) one feels that growing them is a pushover. Not necessarily so. This article from the Lady Bird Johnson Wildflower Center web page gives tips on bluebonnet culture. A key consideration is good drainage. If bluebonnet seedlings are waterlogged for some hours a fungal disease often causes them to damp off. Adding decomposed granite is of value mainly to improve drainage. If you have weather records check to see if there was a long rainy spell in Autumn or Winter when the bluebonnet seeds were germinating and forming rosettes.
One way to assure good drainage is to plant the seeds on a slope. Perhaps the beds where your bluebonnets did well were sloping or otherwise had better drainage than the driveway. I suggest that you loosen the soil near the driveway to assure better drainage for next year.
From the Image Gallery
More Diseases and Disorders Questions
White mold on Bermuda grass
August 07, 2012 - I tried searching and could not find info for this on your website. What causes mold in Bermuda grass and how can I get rid of it? Tried fungicide as recommended by garden center in austin which did...
view the full question and answer
Fasciation on Texas Mountain Laurel
November 21, 2012 - Do Texas Mountain Laurel normally have a staghorn looking growth hanging on them after blooming in addition to the seed pod clusters or could this be a mutation?
view the full question and answer
Damaged leaves on bottlebrush buckeye from Glen Mills PA
June 09, 2013 - My recently planted bottlebrush buckeye plants' leaves are looking damaged but it doesn't look like insect or fungus damage. They look battered by wind but I don't understand why that would happen...
view the full question and answer
Oak roots damaged by ax from Austin
July 03, 2013 - Hello. I am attempting to create my own tiny copy of the Wildflower Center within my yard. I'm using all native, drought tolerant plants. My front yard is full of live oaks. I used a sod cutter la...
view the full question and answer
Is my Crimson queen maple dying?
October 20, 2015 - Is my Crimson queen maple dying if it's leaves are turning brown?
view the full question and answer
Support the Wildflower Center by Donating Online or Becoming a Member today. |