- It would be more comfortable to do all actions with one button, since most of the actions are far from each other and there is never a need to perform two different ones simultaneously
- A bit frustrating to figure things out at the beginning - the game does not tell you if you do something obviously wrong - like buying seeds if you don't have inventory space
- Right now, the gameplay is pretty repetitive and there is no further development. The timings line up and there's no randomness and variety, so you can't deviate from the cycle by more than a couple of seconds - otherwise, it's a guaranteed failure (since you generally do everythin in threes, including failures). The first time you plant 9 seeds is exactly the same as the 100th time you plant 9 seends.
- There is a choice to sell to a customer, but he only buys 1 item from you, making you break the 3-by-3 cycle of doing things for a very small additional reward that you don't actually need since there's no rush. Also, the way he appears and disappears is quite unpredictable - so you can't plan ahead and make a meaningful choice here.
I'm focusing so much on the choices here because it is one of the most engaging aspects of a game. It must be meaningful and somewhat informed. You have a decent base in your hands to build something like that.
Another thing you might be interested to look at is introducing a clear and interesting goal. Right now the goal is to "not fail", and you succeed in it by not doing anything at all :) Sure, you can say that the goal is to earn as much as possible. Even then - the slower you do it, the more effective you are at "not failing" and the more boring it actually becomes. Itroduce something that gives the player a reason to risk and collect more money faster, and a to feel good about when achieved.
Hope I was helpful! Good luck!