Grass particle system hanging half way through landscape system


my Grass particle system is hanging half way through landscape system. I suspect it has to do with the locatioon of the lanscape system but cant work it out. Ive rotated the grasses and changed there position but nothing happens. Here is the blend file.

I haven’t looked at the blend but from the description my best guess is that the origin on the blades of grass is in the middle of the blade instead of of at the base. Select a blade of grass , tab into efit mode, select a vert at the bottom of the blade, shift s ‘cursor to selected’ and tab into object mode. Tools panel on left , origin, ‘origin to selected’ the grass should now emit properly.