Curved timber retaining wall with vertical railway sleepers, great against a lawn. Very low maintenance
http://mylandscapingbrisbane.com/portfolio/block-rendered-retaining-walls-brisbane/ Rendered retaining walls Brisbane.
Retaining Walls, so beautiful! That is a cool retainer wall. Could be a great fence for a yard too.
This could solve my gardening problems of the future for a garden on a slope
Concrete planters/raised beds
Gabion stone wall at MALENY HOUSE IN AUSTRALIA BY BARK DESIGN ARCHITECTS. This could be great if you left space in the top for a planter or planted right into the sides.
retaining wall seating | Gabion Stone Fences Simple Low Cost Stone Fencing