To late to contain my horseradish?

I transplanted a horseradish plant into my food forest last year. It has big lovely leaves, and I love horseradish...maybe I should have learned a bit about it before I dumped it straight into the ground! Anyhow, it's lived in my food forest since June, and I see it's almost the first plant that's making a comeback this spring ( I'm in Zone 2/3). Is it too late to try to dig this guy out an contain it somehow? It's planted right beside a cherry tree and a rhubarb plant - would it be ok to leave it there? Thanks!

I believe horseradish stays contained as long as you don't break the roots.  It will become a strong healthy looking plant but shouldn't take over or spread.  I'd leave it be.  If you want to harvest horseradish root from it, maybe do that once and plant some of the root bits somewhere where you don't mind the risk of multiplying as you harvest each year.

There is a lady in my garden club who's helpful son rototilled her garden AND her horseradish patch.  Now she has it everywhere.