DKIW in front of her Nana's Wildflower Garden at the Start of Last Spring.
Fall is the ideal time to plant Native Texas Wildflowers. May I suggest Black Friday? Forgo the mall, and put in some happiness for Spring.
*Note about Bluebonnets* Bluebonnets should be planted somewhat earlier, around October. If you have a wild flower mix with bluebonnets in it, you may still get lucky planting this late, but this is the last chance. Bluebonnets also usually take an extra year or two to come up because the seed shell is super hard to survive the semi-regular Texas droughts.
If you want to do a large area, the experts recommend mixing 4 parts sand to 1 part seed so that when you throw them out, they distribute evenly. If you aren't particular to where the seeds grow, you can just throw them out on fresh dirt without sand. November has been decently rainy so far, but you should water them in when you plant them if rain doesn't look imminent. If you are planting in a place you don't have cough *exact permission*cough to plant in, say a vacate lot by your house or on the roadside, just look for a day with a possibility of rain. There is a 30% chance of rain this Saturday. The soil shouldn't be allowed to completely dry out the first few weeks. Here's a great resource Mr. Smarty Plants, if you want to know more.