Ah, you also went for more of a simulation game! Yours actually had some actual depth with player loops in a day cycle with multiple parallel actions the player would have to choose between, I only got a 1-2-3 upgrade in place by the end haha - I got 12 thriving trees after my season.
I will mention that at first I didn’t realize I could keep clicking on a mineral to mine more of it, but got there eventually. And having some positive or negative (or even just hover style reaction) on the buttons would help, e.g. if I didn’t have enough to buy, or better yet, a resultant CTA popup explaining or maybe even just hinting about what I need to do first in order to buy later. Also a drag and drop onto the furnace somehow would feel more intuitive, just an idea.
Styling all around was quite good, even good detailing on the itch page itself with the blossoms up top!