Jerry Parsons, a horticulturist at Texas Cooperative Extension, created several varieties of bluebonnets during his career, ...

The ridges of the mortar in between the bricks emit a blue hue, the color ... writes, “Indigo ignited the curiosity and interest of those who loved and studied plants, allowing them to accrue ...

I have noticed that you have endeavored to direct the attention of our cultivators to the raising of madder and of indigo ... On examining them I found it of a deep rich coppei color, clean ...

People have been wearing blue jeans for centuries. Originally, the blue color came from a natural indigo dye. The dye was chosen for the way it interacted with cotton. When heated, most dyes ...