Kathy Brinkley and her son, Jared Brinkley, have never seen a field of bluebonnets in bloom. Nor did they know that bluebonnet paintings were a thing. That’s right, they’re not from Texas.

As spring arrives in Texas, one wildflower always stands out across Texas fields, roadsides, and gardens — the bluebonnet. With its vibrant blue petals and unmistakable charm, the bluebonnet ...