Packet of Tharlendris Seeds is used as a reagent by [Evergreen Pouch].
Source[]
It is initially received as a quest reward from Morrowgrain Research. More packets can be purchased from:
Notes[]
Use Evergreen Pouch to combine two [Un'Goro Soil] samples and a Packet of Tharlendris Seeds to create an
[Evergreen Herb Casing]. This is necessary for the completion of the repeatable quest Morrowgrain Research. Before additional ways to gain reputation with the main factions were introduced, this was the only way to become Exalted with Darnassus to acquire a Night Elf mount for non-Night Elves.