I'll start with I play on PC and I don't use any mods. I started a new character for the event, a single female living in Willow Creek. I was able to do the event through the planting of the flowers ...
Ideas
This issue is still under investigation but please use this thread going forward:
[OPEN] Reaper's Rewards: Wait for/Read Newsletter Task Not Completing
All investigation for the reaper event is currently done at AHQ.