Can this be indigo when it's pink?

This is an indigo plant in my garden. Indigo was grown in Louisiana during colonial times, but I figured this charming plant must not be THAT indigo. That indigo was difficult to process and often made the enslaved workers sick, so planters switched to more reliable crops like sugar cane. Apparently the stems and leaves are processed into the blue dye, not the pink flowers. My app tells me this is true indigo, and who am I to argue with an app?

[katy]

What an interesting bit of history to accompany this gorgeous photo. You have composed it very nicely.

[PhotoCrazy]

Lovely!

[Ann H. LeFevre]

I've never seen the indigo flower, but I did use the powder made from the stems and leaves for natural dyes when I was weaving in high school. Beautiful shot.