Tatwine, once a farmer, believes that crops should be planted throughout Eorlsmead to ensure the survival of his people over the coming years.
'I will tell you the real problem with Stangard, ${PLAYER}. There are no crops, and no crops means no harvest, and no harvest means no food... now, or ever.
'I was a farmer once, but I have been told to stay here and tend to these horses, day in and day out. If I was permitted to leave this post, I would plant until my back gave out.
'Here -- if you have time, here are some seeds. There are fertile enough spots in the plains of Eorlsmead.'
An old, abandoned farmstead lies south along the River Limlight in Eorlsmead.
You should plant the seeds Tatwine gave you at whatever fertile-seeming land you find in Eorlsmead.
Tatwine is at the stables in Stangard.
You should return to Tatwine and tell him that you planted seeds and hope for a healthy harvest in the future.