Guide is great
uhm....low level, wandering saplings for the grain seeds? There is a nice circuit of them in North Gustaberg sort of H/I -6 , I/J - 5. You just have to keep an eye if you are really low for the Quadav near Palborough Mines and the drop rate seemed pretty good.
Had a lot of fun trying some of these out. The only one that's been a bit >< is 3 hours of farming Nightmare bats, not a single drop even though we had TH1.