solutions for hill side erosion

I just bought some property that has been terraced. Along the flats are fruit trees and grapes and on the slopes are various berry canes. I'm in Western North Carolina and the ground on these terraces is very soft. Several of the fruit trees are leaning due to the spongy ground, and when I walk along the slopes to harvest berries or grapes, the ground sometimes gives way under my feet. I would like to plant perennials with deep and wide root systems to keep the ground intact. I'm thinking lavender, but would love other ideas. Thanks!

Hello,

Along with the plants I would suggest you install -perpendicular to slope- logs, big-rocks or boulders even. The addition of old logs will greatly improve the building and retaining of soil on your slopes.
You will notice over time soil building behind (uphill) of such additions- so whatever you may have on site or near by for this purpose install it as you plant to slow soil erosion even more.