ok instand of just farming seeds that you dont know how many xp they give and whats better
im here to tell you that untill lvl 60
do only snapdragon its the best xp and its from 1
from 60 do toadflax thats the best and the only 1 you got from 60...
only if you want to know the xp of each seed so here it is
ToadFlax - 7500
Ladentine - 2000
SnapDragon - 5300
Irit - 1200
CadenTine - 1200
Rannar - 300
Dwarf - 1200
goodluck!