Friendship Test

Get .
Speak with in , perform her quest , mature one of the two flower charms, then return to with the .
After you complete you must, finally, complete the flowering of the amulet you accepted. Use it to equip it in an amulet slot, then use or to add 100 points to the flower each use. 2000 points will mature the flower, and finally harvest the filled amulet (cooldown timer may NOT be active) to produce the you need.
You need a friend that has the opposite flower amulet to harvest the gel you need, or you can usually buy it from the Auction House. 
Advice: Check the Auction House before you accept a flower charm to see if or are available for sale, then pick the opposite flower charm so you can do this easily.
One last note: you can only hold one or in inventory at a time, so only take them from mail as you use them.