Early to late spring depending on moisture & warming weather. I agree with the hill country as it's beautiful any time of the year. As for blurlebonnets just watch the edge of the road, the ditch is usually full of them. Seems they are more prevalent from the hill country to north Texas, DFW area, eastward, too cold in the panhandle, too hot/dry in west Texas.
Danny & Linda
Sold our '13 Thor Redwood 36 FB
Currently RV & truckless