The gameplay consists of you buying plants, growing them big and selling them to people who request those specifically. You also have to water/fertilize your plant and wait. The bigger a plant is, the more passive income you get. So much so that selling a grown plant, unless it's to fill a request, is a waste.
Requests are random but the key to making progress. Requests will come in for specific plants of specific growth stages. This is my biggest problem with the game. I'd rather go into a catalogue of requests so I can make long term plans to progress at whatever speed I'm comfortable at than.. to be honest, what I've been doing. I've felt compelled to plant a LOT OF plants all at once in order to get ahead of requests so I could make progress more consistently and unlock more stuff.
What you unlock is random, and you're not guaranteed to make progress in areas you're interested in. In the beginning, you're guaranteed to unlock certain things like new plants, decorations and upgrades, but fairly quickly it's just random and you might spend a long time playing before you get to see another new plant.
Decorations don't actually do anything other than making your screen prettier. I'm not saying I don't like to decorate, but if I have to choose between space I can use to grow more plants and stuff that's expensive and doesn't give me much benefit, I just prefer to grow more. I know. But I'm a minmaxer, I need a game to incentivize taking it easy in order to take it easy.
When a plant reaches lv4, you can propagate it. Essentially it means to cut a piece off, put it in soil and voila, you have two plants. I was taken aback when I did that and my mother plant turned from lv4 to lv1 and got sick. As like when you don't water or fertilize your plant sick and it has a chance of dying. I'm not saying games HAVE TO mimick real life, but in real life, this sort of thing comes usually very cheap to the plant you're taking the cutting from. Sometimes it's even completely free, if the plant sprouts a second small one or a leaf falls off you can plop into some soil. Even basic maintenance in form of cutting your plant down a little gives you a lot of potential baby plants. A new plant in the game costs~ 200$. With how much bigger plants produce in passive income, this is almost nothing. But in order to propagate a plant, you need to buy an extra pot. Which costs 100$. I think there isn't really a point in propagating plants in the game. It takes significantly more effort and wastes your time and reduces your passive income.
One thing that I've grown to dislike quite a bit was interacting with your plants. Everything you want to do with a plant like watering/fertilizing or placing it somewhere else requires you to click on the plant first. This may not sound like a big problem, but I don't see why I shouldn't be able to simply press Q while hovering over my plant to water it. Clicking on the plant to get a little menu showing the possible sub menus and interactions is fine. But I feel like my intent of interacting with the plant was already made clear with my mouse hovered over it. Doing this with 20+ plants, an invisible timer on plants before they start dying and an effect that's meant to highlight the plants in need but sometimes makes it look like the neighboring plant is the one requiring your attention..
I don't like that I can only choose between giving the game a thumbs up or down. I think this game has a place to exist and it obviously brings a bunch of people joy. But I feel like if I'd ever want to return to the game, some things need to change. I would love to go into a lot of detail on where and how, but Steam reviews can only be a certain length. I hope my words don't sound harsh. I think with a bit more polish, it could be a game I could recommend wholeheartedly.