I'm trying to figure out something that can be direct seeded / scattered for perennial erosion control in a steep orchard. The context is Southern California, but i'm curious generally for anything that does well in subtropical or tropical areas.
So far the best option for erosion control I can find is Vetiver grass, because its roots go straight down and are known to be very good for erosion control. But it rarely sets seed, so it can't just be scattered across an eroding hillside.
Anyone have any suggestions?