Are we talking big, in ground bog garden, or above ground minibog? approximately how much surface are you thinking you want?

above ground minibog that is a little long that could be put on a small wall

Well, I've got an idea for one that I'm gonna try out when spring rolls around. Using a big rubbermaid bin like this:

http://www.rubbermaid.com/rubbermaid/product/product.jhtml?prodId=HPProd150027

First, cut out about a 6 inch tall by 1/2 inch wide slot near the bottom on one side. Then using water resistant glue, apply some type of strong clear plastic over the hole. Now you layer the box using some type of cheap sand and rocks that wont hurt the plants. After that, saturate the sand and rock with distilled water. The idea is that you can now monitor the water level in the bottom of the container.

Then fill it up with whatever growing medium you like. I'd probably do a lot of peat/perlite mix. Then a bit of dry sphagnum. Then a top coating of live sphagnum. Although straight up peat/perlite would probably work.

I also had the idea of running a hose down the side of the bin into the sandy part, so that you could raise the water level without a lot of top watering. I'm pretty sure it could work somehow, but I might have to do some fluid physics problems.

I've never tried this, but I've got a lot of those rubbermaid bins at my house, so I figure I should use em.

cool