A really good entry! The visuals are lovely and give off a cozy vibe.
This could totally become a great idler game on Steam!
I mostly used the third tier of mushroom and skipped a whole bunch of the others.
Maybe there could be a second requirement for unlocking the rest, like harvesting the previous type 10 times or so?
Just throwing around ideas, and I mean it as constructive feedback for an already well-polished entry!
My favorite was the mushroom that produces light, combined with the one that withers quickly in the dark.
Being able to plant mushrooms inside the tree at the end was a cool surprise!