Question
I have a bed of mixed plants with mostly packasandra

I would like to keep the pachysandra in a restricted area and use the balance of the area for other plants and flowers.

How do I prevent the pachysandra from spreading and wiping out the other plants?


Answer
John,

If this were my bed, I'd first use a garden fork to uproot the pachysandra wherever I didn't want it.  Pull it out, and save it for transplant, or see if any neighbors want it.

When pulling it out, pay attention to how deep the spreading roots are.  That's the depth of border material you'll need.  Here, my pachysandra runs quite shallow, but I've got it in really bad soil near newly built buildings.  It might be different for you.

I'd then get something to create a border.  It can be the plastic edge from the garden store that gets mostly buried, or bricks on edge, or closely fitting rocks, or even a small concrete curb.  The rocks and bricks may let a few roots through, but they'll still slow down it's spread considerably.  Creating a border can be fun.  I've even seen them made out of old bottles stuck upside down next to one another.  

Whatever you choose, just install it slightly deeper than the deepest roots you find when you dig it out.

For what it's worth
Mark in Portland Oregon