Question
I live in San Antonio, TX - Zone 8 and have spectacular wild flowers on my 1 acre property. The grass is native prarie grasses most little blue stem I am told. But, growing along with the grasses are what we call cockleburs (sp) a tufty green grass that has round, spikey burs! They are terrible and I want to kill them. What weed killer can I use that won't kill the wild flowers? The bluebonnets are already quite large and will be blooming soon and I sure don't want to decimate them or any others. Any suggestions?  Planting other grasses really isn't an option I don't think because they will choke out the flowers right?

Any help would surely be appreciated...


Answer
im not quite sure how to help you,  there is a weed killer that just came out this year from spectricide, it is called something like 3 strikes, (not quite sure), it comes in a premixed bottle with a battery opperated trigger sprayer, so you just push a button, if you go and spray it carefully not to get your flowers you can wipe out some of the grass before it goes to seed in the early spring.   besides that im not sure,,   blue fescue  is not invasive,   good luck