[DU] No way to tend to the sprites' garden

The year is 2026. We still can not complete this quest. lol I can not finish tending the garden. Can we just go to the rock and say tend the garden or something? 

I can harvest the plants (when in season) but it doesn't register as tending to the sprites garden when that's a secret society task.

This is still happening. I followed the instructions that to Water, Weed, or Harvest but still can't complete. 

I had my sim join the secret society and noticed all 4 plants in the sprites’ garden at the secret meeting never need watering, weeding, or harvesting, so cannot complete the “tend to sprites garden” organization goal. I have Seasons, and have now visited in all four seasons, both during the secret society meeting and at random times - the sprites garden don’t sprout. (I play on PC, no mods)

I did get the set to head thing to work for me eventually. I don't remember how I did it exactly, sorry. It didn't work for me at first, so you might have to fiddle with it a bit. What a pain :( 

Anyone found a work around? The set to head doesn't work for me.