Usually I only use 1 Raid Point everytime I attack a Boss because I use them to complete the Daily quests = 3 times 1 RP = count as 3 for the Quest even if you fight the same Boss several times.
I have seen only 1 time the Seed Bearer, and I was the one who found him.

This is very useful info. Thanks a lot! I had absolutely no idea about this. Was just wasting my raid points ='(