Nice job with this! I had some similar UI issues with my submission and ended up going for a worldspace canvas so that it wouldn't scale with screen size at all, and I set a fixed game window size in my itch page so it would show up the same on every device.
I enjoyed the music and the visuals in this game! The most entertaining parts for me were how the plants wiggle, that you added wandering NPCs, and that you can alllllmost force your way through the fences, but not quite. XD
It would have been nice to be able to cycle through your items with the number keys, it took me a minute to realize you have to use the scroll wheel, and I couldn't really tell when the plants were ready because I didn't know what a mature plant looked like when I first planted them. The wiggling animation on them almost makes it look like they need to be interacted with, so maybe they could only wiggle when they are ready to harvest. :)