Attaching low retaining wall to fence post
I want to lay pavers to create a patio between my house and a wood fence. The area in question has a slight slope away from the house toward the fence. In order to create a level rectangle for the patio, I would like to do two things: dig it down a little in the highest corner (approximately .5 - 1 ft down) and build a small retaining wall by the fence in the lowest corner (approximately .5 - 1 ft high). The 4x4 fence posts are 8 ft apart, cemented 3-4 ft in the ground. I want the retaining wall to be below the bottom of the fence (i.e., really low and just high enough to raise the slope enough for the patio to be level). My question is this: Would I be able to simply attach 2x6 treated wood to the posts and have that hold the dirt in place? My worry is that it will make the fence lean with the pressure from the dirt. On the other hand, because the wall will be very low, the amount of dirt resting on the wall and thereby the posts will be minimal. Any recommendations are welcome.