I love planting the peafowl pen! Planting a peafowl pen is trial and error. Some plants the birds will tear up, some of them they don't even mess with, and some you don't think will do great in the pen and after a few days the birds have totally dug it up and torn it to shreds. I planted one plant that had pink, white, and green leaves. Maybe the birds were over interested in the color because they scratched that plant up. I watched them do it they didn't even like eating it they just scratched it up. A nearby breeder has a beautiful small pen for peachicks that she keeps a few large banana plants in with no problem but when I planted a banana plant in my pen the birds ate it all. The general rule I have found with plants is the soft ones normally don't fair so well with the birds, but some are an exception. Mostly all grasses can survive peafowl as long as they are not trampling the grass so the taller the better.
I would show you some pictures of the plants in my pen, but my photobucket account has run out of bandwidth because of too many views of my pictures but I can tell you some of the plants I have in my pen that work well.
1. Clumping bamboo is one of my favorites. Bamboo is hardy and provides great shade for the peafowl in the summer. It doesn't take it too long for the clump to get nice and mature giving the birds plenty of shade and the peafowl don't eat the leaves. Just make sure you get the clumping kind and NOT the running kind of bamboo. You can always cut some of the stalks to keep the clump looking less dense.
http://www.bamboogarden.com/pruning 6.jpg
2. Zebra grass. Zebra grass gets big and it has a cool stripe pattern on it. I am going to try planting some lemon grass this spring too.
http://thosedarnsqurls.mswin.net/Zebra_Grass.jpg
3. Lantana- The lantanas in the peafowl pen grew there on their own. I think there used to be lantanas growing in the location the pen is now at and so since I have been watering all the plants in the pen several lantana plants have popped up. I really like them and one of my peahens nested under one. Lantanas have beautiful flowers that cover them through most of the spring and summer time. The only negative I could see is maybe they might spread since they are popping up all over the pen.
http://1.bp.blogspot.com/_Jidy_QuNt...2XU/s1600/Patriot+Lantana+'Desert+Sunset'.JPG
4. Fatsia- This plant is amazing!!! I have three of these two are small and one is big. Fatsias have a tropical look but they retain their green during the winter. I am in the cold part of Florida so I am always wishing we could be just a bit warmer here so I could grow tropicals, but the fatsia is a great substitution and the peafowl don't mess with it but rather rest underneath it too.
http://pics.davesgarden.com/pics/2007/04/05/GardenGuyKin/8dead9.jpg
5. Giant iris- I got this one at the Home Depot which is were I find a lot of great plants. I love the looks of the leaves on this plant. A lot of bugs hide in this plant so the peafowl like to look through the plant for bugs. The flowers are beautiful. We have one on the front porch and that one blooms but the one planted in the peafowl pen hasn't bloomed at all yet. That doesn't matter much to me though since just the leaves are nice to me.
http://www.fs.fed.us/wildflowers/beauty/iris/louisiana/images/irgi_001_pvp_lg.jpg
6. Cast iron plant- We got tons of these for free. A local church was throwing these plants out because they couldn't get them to grow! I think these plants need a bit of shade to really do well. I love these plants. My peafowl walk through them and scratch around for bugs in them but don't mess up the plant. This is another plant that stays green all year round.
http://www.saws.org/conservation/h2ome/landscape/images/cast iron WEB SIZE.JPG
7. Japanese Maple- I can't wait for my japanese maple to get as nice as the one in this photo! Right now mine is a little lame but the peafowl don't eat the leaves so that is always good!
http://japanesemaplesandconifers.com/garnnet.jpg
8. philodendron- The leaves die in the winter but the leaves are really cool looking. I was so happy to find out this plant can survive here.
http://www.wisenurseries.com/galler...PS_SELF_HEADING_PHILODENDRON.jpg?m=1303173016
Some things I keep outside the pen for decoration are cannas, the bananas, and heliconia.
That is mainly what I have in my pen, there are probably a few more things and some things I don't know the name of!