Ok, so my worm farm has been going since last summer. I cleaned it out at the end of the summer (long story) but now I have a 18" x 18" container that is about 3" full of worm castings. With more on the way. My question is, now what do I do with it? Do I mix it in when I till my garden (which isn't going to happen for several more weeks sadly) or do I put some on the top of my started seedlings? Do I wait and put it around the plants when I transplant them???