Do you need to mix anything with the Leafgro in your raised beds? I just made some raised beds and filled it with Leafgro, but wasn't sure if most people mix it with soil also?

Mix it

Bed Preparation

When preparing bed areas for flowers, perennials, ground covers and vegetable gardens, use eight bags per 100 square feet of garden area. Mix to a depth of four to six inches. Leafgro® should be used when creating new beds or rejuvenating old ones.

Maryland Environmental Service :: Leafgro (http://www.menv.com/leafgro.shtml)

Do you need to mix anything with the Leafgro in your raised beds? I just made some raised beds and filled it with Leafgro, but wasn't sure if most people mix it with soil also?
It says to mix it with Soil.