The white pearl seed is obtained by eating a White pearl fruit. This seed must be given to Jokul during the Mountain Daughter quest.
This seed can not be planted in any farming patches.
If the player tries to obtain two seeds using the drop trick, a message will state "One seed should be enough." However, Telekinetic Grab can be used to bypass this. Another method for players who want more than one seed or fruit can pick a fruit and drop it, pick another fruit and eat it, then pick up the fruit that was dropped.
While no more white pearls can be obtained after the quest, if the player used the drop trick to obtain multiple, they can still be eaten after the quest to obtain the seeds.