Of course! Gardenscapes is free to play for everyone. All levels can be beaten without spending real money.
If you want, you can get some in-game resources using in-app purchases to make things easier, but you certainly don't have to. You can get boosters and power-ups that help you beat levels as rewards for participating in in-game events and by doing the Lucky Spin.
You can also find videos of other players beating levels on YouTube. You can also find videos of other players beating levels on YouTube. Try sorting videos by date to find the most recent and helpful ones 🕵️♀️
If you are concerned about accidental in-app purchases, you can always set a password or other means of blocking them on your device. This is particularly important if children have access to your device.