I really liked the idea you had here. And your visuals are really neat. Especially the plant that really stayed consistent all the way through as it was growing. (This must be even harder to draw than it seems )
The game needs some adjustments in term of QoL and time management. Which is easier said than done for a 48h jam ^^
Others already gave you a lot of very constructive feedbacks so I'll just pinpoint one specific aspect that I had the most in mind while playing.
Right now it basically only take 3 bushes to have a full rotation of leaf supplies to fill up a composter as the 1st one is ready to harvest by the time you collect the 3rd one. So there isn't really any incentive to use all the resource provided. Adjusting timer might help but might also make it more frustrating. Another solution would be to be able to stack up items that you can carry so there would be a reason to explore further. (I realized as I'm writing this that this might have been your initial plan as the player is carrying what looks like a basket on his back, but you just ran out of time to implement it ^^)
Also same issue with the second composter. There isn't any reason to build it given the time it needs to fill one vs the time needed to generate 1 compost.
All in all it's a really neat game that needs a little more time to be polished.
Great job and congrats on submitting your game ! even if it's not the fully finished version you had in mind :)
I hope you take the time to finish an polish it after the jam. Even if just for yourself :)