mossing a brick area

I have heard that all you need to do is put some moss in a blender with milk, pour it in the cracks, and ta-da! is this true???

also, can moss grow on bluestone powder?

I think that you use buttermilk as opposed to regular milk. Something about the acidity of buttermilk is supposed to encourage the moss to grow. I've wanted to try doing this but never have. I don't keep buttermilk on hand and never think to buy it.

I thought that it was yogurt. I'm afraid that the milk would smell really badly after awhile.

Another option is to use a couple of cowpats, made up into a slurry with water. Smelly, but perhaps not as bad as gone-off milk.

Resin

I tried it with the buttermilk and had no success.

I have heard to do buttermilk with manure. I can't even beging to imagine how foul this will smell. Did anyone have any other results?

The soil needs to be acidic,the area also should have high humidity (poor air circulation).

I used the buttermilk recipe quite a number of years ago and it worked fine. I didn't notice the smell. The soil was prepared with a large amount of peat mixed in, compacted. The best time is when temps are below 10C with high humidity and ok air circulation. The area was misted every morning+ with a very fine mist. Acid soil + high humidity + cool temps + low indirect light = moss.
http://www.bbg.org/gar2/topics/design/2004sp_moss.html
http://www.mossacres.com/default.asp - a whole business & site dedicated to growin it.

If you lived in Canada, I coulda' sent ya some cool mosses but....