Questions about sheds, pole barns, retaining walls, decks, patios?
All these are questions and issues that home owners have, and typical DIY'ers like us have to deal with. All the ones listed above seem ok to me.
However, what about questions more related to landscaping, like tree pruning, planting grass, landscape bed work, weeds, mulch, etc. Those are a fine line to me. Kinda home improvement related, but that could easily cross over into landscaping design such as what types of shrubs to get, etc. Not sure on that stuff.