[Dale Wiley]

In your zone, I really doubt if you will be able to contain ANY of the plant's you mention. The nature way of wet land, and bog materials is to spread like that.

Juncus seeds will establish about any where, and over the course of a couple of years, establish quite well. Cyprus will do that same, we had some we threw out of a failed greenhouse last Feb, and also dumped the bed water out. That material ran about 150 feet and established a nice stand of cyprus in a stock plant area.

I am going to let it be and see how it does like that in zone 8.

A marginal planting like you describe should be lightly planted with mature plants, and then let nature take its course. Trying to recreate nature in less time than it occurs naturally, will only increase your problems down the road.

We sell a lot of marginals late in the season, for failed plantings in bio swales and remediation areas. They try and establish with plugs or bare root, and get a less than 30% survival rate, and then come looking for mature plants later on.