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

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)