Artmisia variegata help!!!

Hi all,
I bought Atimisia variegata (Oriental Limelight Mugwort, Latin: Artemisia vulgaris ) plant last year because the foliage looked very pretty. I didnt think of it too much and planted it in border with other plants growing around it. this weekend I noticed that it has started to spread, new shoots are coming out quite far from where I planted it (almost 12-20 inches). So i decided to do some online research. One of the blogs mention that
"The woody roots of this plant secrete a certain chemical that inhibits the growth of other plants around it. This is a unique weed-like characteristic of the Artemisia herb.”
has anyone got an experience with Artmisia? can you suggest should I keep it in border or move it to container? I do not want my other plants to die out. I have a new garden and most of the plants were put in not more than 6 months ago so they may be still in the process of establishing themselves.. Right now artimisia is growing next to astillbe, a grape vine (who is still asleep ) and iris.

one more question, if i plant it in container can you suggest a companion plant I can put in to add some color to the container.


thanks in advance

 

Marley's plan sounds good. If you chop off any promising pieces in the process you could pot them up.

 

thankyou both. my plant is just few inches tall and wide, and i have small borders, so i am thinking better to just pick it up.