I really enjoyed this! Sadly couldn't finish it (got 6 out of the 7 and couldn't figure out that 7th combination: got all the 2-combination ones though). I definitely have a weakness for farming games, and 'find all the combination' style games haha.
I did run into an odd bug though where the text describing the plants harvested was blank (so the box would show up, but no text inside). Might be partly why I was missing what to feed the pumpkin haha, but really enjoyed it nonetheless.
VERY impressive considering you did this as a solo developer! Very excited to see what you work on next.