This flower takes me back to 17-18 years ago. 

I first came across them one summer, growing wild all over an ill-kept garden, swaying in the wind, totally oblivious of the surroundings and their new admirer. When the flowers gave way to seeds, I collected them and brought them home, saying to my Mother, “I want these flowers to grow wild on our garden as well.”

On my last visit home a few months ago, my Mother gave me a few seeds and said, Plant this in your garden.
Our living space having shrunk, I do not have a wide garden where these flowers can grow wild as they did long ago, so I planted them in a pot. 
The first flower blossomed last week.