Hi @Tinytuttle, pleased to meet you, no grafting has been made (I am also a newbie on gardening ). Perhaps I have buried some oxidated keys, I will see next spring how they look. Here I have found another pic of that plant with my mobile anti-rain platform:
And here you can see some plants from neighbors and wilderness I intend to take some cuttings to see if they change or keep the color in my soil:
I am doing some experiments on this, I have planted some cuttings in regular soil you can buy in the garden center to see if they keep the color or change:
I'll keep you informed with the results, cheers ...