Great use of the theme, one of the best incorporations of it in the jam that i've seen. Nice art, audio is basic but does the job.
It's really not my sort of game so I didn't play for too long but the only real issue i noticed is sometimes when you pick a seed it doesn't turn into the shovel immediately which is a tiny problem. I think if i were willing to sit and take the time to play through more than a couple of years all the info you need is there in the almanac.
Oh I guess one thing I really didn't find clear was nutrients, and some of the oither soil conditions, I could tell the worms were representing some of that and the shading, but like how you can examine the plants, it might be nice to be able to examine the soil too for it's current traits.