More than 800,000 acres of unpaved right of way is habitat to hundreds of species of animals and thousands of species of plants. The Bluebonnet became our state flower in 1901. All six species of Bluebonnets are considered to be the state flower of Texas. Because Bluebonnets have deep root systems, the first Bluebonnet plantings were for erosion control rather than beauty. Most Texas wildflowers are fall germinating.
Bluebonnets add nitrogen to the soil by fixating atmospheric nitrogen through root nodules.
Over 5,000 species of flowering plants are native to Texas. Plantings of single species don't do well. Roadsides are most stable when natural combinations of grasses, legumes and wildflowers are encouraged. The varieties complement each other, form better ground cover, are healthier, hardier and more drought resistant. March, April and May are prime blooming months in Texas.