hi, I was glad you asked this question, I changed how I was doing something now. I watched this video https://www.youtube.com/watch?v=JPzYJp5Mfvs (only 6 min) and it helped a lot. I am still using wind and turbulence, so ignored the last half of video. You need to reposition you grass piece, in edit mode. The origin of my grass and the origin of the mesh with the particles is in the same place. You can change the way they point in edit mode. or in the particle instance change the coordinate space axis. The offset in the air change the grass strand in edit mode or adjust the length of the hair. Hope this helped some, good luck.
