While I have always enjoyed gardening, it was not until I was behind bars that I was able to tend my own gardens. (Para.6)
A.
Although I have always loved gardening, I didn’t have a garden of my own until I was in prison.
B.
When I have always loved gardening, I didn’t have a garden of my own until I was in prison.
C.
Although I have always loved gardening, I had a garden of my own when I was in prison.