Lavender to prevent hill erosion.

Have a fairly large hill that had once been a terrace that’s beginning to fall onto other terraces and is making a mess of things. It’s too steep of a slope to tackle with a tractor or digger. I have chosen some good fast growing fruit and nut trees that will grow well on the slope and will help strengthen the earth.

I was thinking of planting Lavender (a lot of lavender) as ground cover on the hill. I have a very large family of bees that enjoy the wild flowers that have found their way onto my land so this will also be to their benefit. Hoping for some Lavender advice. Varieties that might produce better ground cover or have a more robust rooting system. Maybe a variety that might live longer than a few years. Or just general tips on cultivating the plant. Cheers