I think I fixed my problems

Here is a picture of the railing I installed. It may not look like much but without it disaster could happen. The green roof goes over the edge. Here I am replanting one of my 100 trays. You can see there is potting soil on top. This is much heavier than the "gaiasoil" which is almost unbelievably light. I should mention an important point about weight. All the information about putting in a green roof starts with the disclaimer "get an engineer to check the load bearing abilities of your roof." What I did instead was remove 3 layers of hot tar roofing. I'm pretty sure these layers were heavier than the load I added with the green roof. Also my house has a crawl space attic so there is no load put upon the joists from underneath. This blog is not a set of directions on how to do this. It's what I hope will work. There are a lot of places on the web which have all sorts of directions. Here is a picture of the replanted roof. Now I just have to get the plants established before winter. The basic advise is water them once a day for the first two weeks and then once a week for the first six months. So that's my plan. I'll check back her in about two weeks if nothing else goes wrong. Then I hope to down load a few images of the roof once a month. This is a picture of what I think is Sedum Angelica. I bought it and 9 more at Lowes for a dollar each. They were in pots that said annuals.but their information cards said they were sedum spurium. Of course the people at lowes knew nothing. Usually a sedum this big would cost 5 to 10 dollars. They were marked a buck because all the annuals were marked down . This is the type of thing I can't resist. when I got home I researched what their label said sedum spurium. That definitely is not what this plant is. I then typed in sedum and then clicked in images and just kept looking at pictures of sedum until I came to sedum Angelica. So that's what I think it is until it turns brown and dies in november. I'm sticking with that.