I really hope you take this a bit further and polish it up after the jam! Your character art is wonderful, really really loved all their poses and expressions, they told so much of the narrative. The potion puzzles are fun albeit a bit simple, I think you could make the plants effects a bit more generic so it's not quite as easy to apply them to very specific cases, or even require more than one ingredient for harder puzzles.
The order of applying water and mixture and flowers didn't seem to matter, and right now the water and mixture feel like busy-work - in an expansion maybe they could be turned into more of a mechanic on their own.
For the gamejam content itself my biggest feedback would be to change the font as it's not the most readable, both in dialogue and on the plant descriptions, and makes it a bit hard to follow along with things intuitively. I'd also suggest that dialogue with customers should start up as soon as you go to the dialogue screen, and that there should maybe be a way to record what the customer has said, because if you fail to pay attention once there's no way to go back and take another look.
It has a lot of potential!