The Shucks To Be You quest requires shucking 6 herbs for seed, planting 6 seeds, and harvesting 6 flowers. The easiest way to do this is with Purple, which is cheap to acquire and very fast to grow. One purple seed fertilized with 2 guano will flower in a couple of minutes real time.
I shucked flowers to get 6 seeds, gathered a bunch of guano, and went to a public garden early this morning. There was exactly one plot nobody had planted. So I planted my purple, fertilized it, and chatted with others there. It was very congenial and friendly. Most of the people were doing the same quest that I was.
I planted and re-harvested that one slot 6 times, figuring my quest would be done. Not so! The quest gives you credit for harvesting only after you have planted 6 seeds. So I ended up planting and harvesting 6 more seeds to finish the quest.
A quicker way to do it than I did would be to go plant 5 herb seeds any old where, leaving the flowers for other people to harvest. Then the next 6 herb seeds you plant you can hope to harvest. And if somebody comes by looking for a free harvest you do not have a lot invested in any particular purple flower.
Doing it this way costs only 1 purple seed plus 5 meat (to get two guano) for every flower.
The bright side of my mistake was that the Herbal Hat Trickery quest requires 3 super-harvests of herbs, and I managed to get all 3 of those because I had to harvest 12 flowers not 6.