It has walkways so you are not stepping on plants or compacting the dirt where the plants grow. It is easier to know where to put fertilizer and where to put ground cover to keep moisture in the soil. It keeps me from wasting water. We live in Southern California and are under drought conditions.
One of the water conservation gardening techniques I am considering using is a German, raised-bed garden called a Hugelkultur. It takes a few years to get it going good, but once it is established will only need water periodically...like a few times a year.
They usually start with a trench several feet deep and wide. Then you lay a bunch of tree trunks down first. Then branches, sticks, all small pieces of compostable yard waste (grass clippings, leaves, garden waste, wood chips). Water it down and continue with compost on top.
These can have a frame around the bottom to raise the bed up so you can garden standing up. Planting trees and veggies gets better after a few years because the garden gets more in-sync with itself. It warms up faster in the Spring. Takes less and less ADDED water to keep things growing at maximum capacity. Creates a healthy bug environment to keep things in balance.
I have been looking for places in the yard to build these raised beds because we have a bunch of trees to cut down and a bunch of branches laying around the yard.
With a good dirt mover, I can remove some bad trees, in bad places. Dig the trenches for the tree trunks to lie in. Move the piles of branches to the top of the raised beds. THEN...I can move some dirt piles that have developed over the years to top off the Hugelkultur. The final touch would be to add compost...and plant.
This would be a way to use up all the green waste I have collected over the years.
My plan for the future.