About 1 year old. I've left it in pot and just watched it. The rest of the seeds were grown last year and didn't survive the winter. I did overwinter and put frost cloth over them but clearly it didn't work.
Maybe too big a pot. I water every so often and just have it fertilizer.
How is abuse to let a plant live longer ? In their natural habitat they live longer. If anything it's abuse to move them to other areas where they die of frost.
I wouldn't think it's an advanced technique. It's just growing them all year rather than half year.
But thanks for commenting