Best Garden Plant

I Bought A Plant For My Garden But Lost The Stick That Tells The Type Of Plant It Is. So I Need To ID It So I Can Safely Winterize It. It Has Broad Deep Redish Purple Leaves, And Blooms Small Pink/purple Flowers That Don't Last Long But Leave Little Purple Bumpy Balls Behind, At The Base Of The Bloom. It Grows Quite Tall, And Reminds Me Of A Rubber Tree Plant In Nature.... I Have Searched The Net, But That's Near Impossible... Any Help Or Suggestions? It's Too Beautiful And Hearty To Lose!!! I Am On The Canadian West Coast If That Helps With The Type Of Plant I Can Purchase.