Wow! How many bog gardens do you have, to house all of those various plants?
Calgary, Alberta, Canada - Zone 3
-30 C to +30 C (rarely!); elevation ~1130m; annual precipitation ~40 cm
I have created several small bogs next to my pond. I scooped out a 8"-10" deep depression and lined it with pond liner. I used uncomposted peat mixed with about 1/4 washed (sandbox) sand and watered thoroughly with water from my rain barrel. (Don't use water with chlorine. Filtered water works in a pinch.) If you plan to grow drosera, put holes at soil level so the plant crowns don't get wet in winter. Other bog plants don't care. I grow pitcher plants, venus fly traps, grass pink orchids and ladies tress orchids. I would recommend putting ladies tress orchids in their own plot, since they are quite invasive.I got many of my plants from Carnivorous Plant nursery in MD. I live in Pittsburgh, PA (zone 6)