Sorry for the delay. Some 1/1 scale plumber tasks this weekend. Thanks for your patience.
Okay, we have the moss down. Now we need to add some of the weeds and other stuff that always jumps up as soon as it gets warm. I am using Woodland Scenics turf. I think I got this giant bag in a box of stuff at an auction:

Using the same paint pan, mix up the ever popular white glue and water and lay on some random spots:

I have one corner cut off the huge bag of turf. Then just puff it out on your base where you put the white glue and water. You should try to put on as little as possible but it doesn't really matter.
You will end up with something that looks like this:

Wait a couple of minutes and grab a paper plate. Lift the base and tap the excess turf onto the plate. This does two things; lets you know what your base looks like so far and doesn't waste the excess turf.

You will end up with random spots, like this, which is what you want:

It will take a couple of sessions to get all the turf on your base. Remember that you really can not do a bad job. Channeling my inner Bob Ross, it is your little world here.
Close up of one of the corners with the moss and the turf:

I am having a great time actually taking in progress photos of a project. I am also really enjoying the questions. Don't hesitate to ask.
Thanks once again for following along.
I am not much of a fan of static grass but I may actually have to use some.
Thanks again,
Shaun