My home garden is in Monroe, Ohio. Officially in USDA hardiness zone 6a, we still, however briefly, have hit zone 5a lows in winters not to distantly past. The soil in my immediate vicinity is Eden silty clay. In many local developments, the good stuff has been scraped away and sold off as topsoil to some other poor schmuck who also had THEIR upper soil horizons scraped away. Whatever we had upon our arrival has been amended with horse manure, coir, and compost. There is no bed in my yard that couldn’t have been amended some more.