fwb

1. You need 1 seed. 2. It depends on luck. When using super compost, I could get as few as 5, or as many as 12. But usually I got 6. 3. If I remember it correctly, it add 10%. When I out of luck, I still get 5. But usually 6-8. I got 13 once. Anyway, my farming lvl is 78. But I dun think it is related. Hope it helps and happy farming.