I can almost guarantee that if you buy compost (any where on the planet) that the biology will not be 1) the organisms you need and 2) have enough of them alive and well the way you need them.
The best compost for any piece of land is made on site, from the materials provided by that land.
Most compost that is for purchase has sat around for far too long a period of time.
Unless you are able to buy in bulk, it probably is in plastic bags, which means the biology is dead.
We love visitors, that's why we live in a secluded cabin deep in the woods. "Buzzard's Roost (Asnikiye Heca) Farm." Promoting permaculture to save our planet. you can call me Dr. Redhawk