Metallic leaves

can anyone help me with this one?

it`s a metallic color never seen before.

 

No help at all; simply

 

I though about perilla , but nevere seen a colour like that , it`s pure metallic grey , I though it was painted , but it`s a real color ....any overwintering tips?

 

John have you ever tryed tradescantia zebrina , or fluminensis or maiden ? in a good summer they will overtake the garden .

 

maiden blush , very easy to find on ebay , I`ve got fulminensis wich it`s the hardy of all , if left few cutting manage to survive outdoor last year.
tradescantia maiden blush .

 

I know you get some low temperatures down your way, but Will Giles (in Norwich) finds his stay alive outside ...

 

Kristen , tradescantia fulminensis is the smartest plant I`ve ever seen , it will survive outside , because will tend to grow in protected site of the garden , put a cutting in water and it will became a water plants , in drought condition , will chance color , will produce small leaves and will get covered with air roots ... I sound silly but it`s an amazing plant.

 

John, I'm intrigued, I have Perilla Magilla, a red and green one but can't be the same as yours as it isn't used as a herb and it's only propagated vegetatively.
The purple P Frutescens was known as a meat tenderiser in the Phillipines but not as far as I know used as a herb. Have you got a pic?