I put my raised garden beds in last year, so this will be the first year I amend the soil, any suggestions as to what combination to use. I have heard to use about a good 2 inches of compost (mushroom?). I also have some earthworm castings. What do you think about adding Beneficial Nematodes, so confusing! Being I didn't have anything growing in the beds over winter, the soil seems so dry. I have 11 beds. I want to use 6 (and a raised bed Trug) for veggies and the rest for flowers. I tilled it very lightly with the yellow "hound dog" tool and got rid of any weeds, so I'm all set for the next step. It's been warm here in Charleston and the 10 day forecast is going to be warm, so I'm just about ready to start to put some plants in the ground