It's a decent prototype. Of course it needs more content to be a full game. I'd argue the idle mechanic should be improved A LOT, I think it's buggy, she never cut the flowers, and I had 0 (infinite?) on the amount but she did water the plants and pick up the fertilizer.
Here are some ideas.
Maybe you could hire people to help you and assign a list of tasks for them, for instance your assistant/s could be in charge of watering and fertilizing (if available) and you'd set the amount of fertilizer to be used per day or so. So eventually the player only has to think about the amount of bulbs to buy and to plant.
It feels like the economy doesn't scale much (now that I think about it, I'm not even sure it's an incremental game really).
You could add more elements to make it more entertaining, like sprinklers or scarecrows (maybe also you should scare crows away manually with a broom or by adding a scarecrow)
Now that I thin k about it, all I'm mentioning is in stardew valley, so probably the best idea is to investigate those kind of games and see what works.
Good luck!