My front yard is on a very steep slope that's difficult to mow. I want to replace the lawn with a low-care garden and was thinking of using a hybrid technique. I'd dig holes about 2 feet apart, like zai pits. Fill them with vertical sticks/wood. Fill gaps with manure and use soil from the hole to create a berm on the low side of the pit. Once everything's planted I'll lay down cardboard between the plants and mulch with wood chips.
Thoughts on this approach? Anyone tried anything similiar? Is there something I'm not considering?