I replaced the 2 tier retaining wall and regraded the yard. There’s 2” of soil over gravel on the sides and the first lower wall. Roughly 3’ of planting space between walls. Open to suggestions for perennials and ground cover to limit mulching and shallow roots.
by Danitay
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I am zone 7a in northern NJ. And these retaining walls are roughly 75’ long, with the sides 16’ long. Space between the two walls is 3’. And from side walls to fence will be 2-2.5’. Also open to what I could plant along the front perimeter over the gravel base.