Q.Ground cover
What low maintenance ground cover is good for a shady sloping backyard with lots of tree roots?
Here are some links to help you get started with your project.
https://www.gardeningknowhow.com/special/shade/ground-covers-for-shade.htm
https://www.gardeningknowhow.com/special/xeriscape/drought-tolerant-ground-covers.htm
https://www.gardeningknowhow.com/ornamental/groundcover/pachysandra/pachysandra-ground-cover.htm
https://www.gardeningknowhow.com/ornamental/groundcover/snow-on-the-mountain/snow-on-the-mountain-plant.htm
https://www.gardeningknowhow.com/ornamental/groundcover/monkey-grass/monkey-grass-a-spectacular-groundcover-for-the-lawn.htm
https://www.gardeningknowhow.com/special/shade/woodland-garden.htm
https://www.gardeningknowhow.com/ornamental/groundcover/creeping-jenny/creeping-jenny-ground-cover.htm
https://www.gardeningknowhow.com/special/xeriscape/xeriscape-shade-plants-plants-for-dry-shade.htm
https://www.gardeningknowhow.com/edible/herbs/woodruff/growing-sweet-woodruff.htm