So it can be useful to keep a small calendar or a schedule for that! This way, the quality of your plants will always be the best. You can do that only evert four days, however, the game doesn’t tell you when you can do it again. The process itself is quite simple, you have to click on a plant and press “ Fertilize“. You can only fertilize once you have reached level 3 of Gardening. There are a few things you should keep in mind before running over to your plants. If you haven’t done that before (maybe not even in real life!), then do not worry because in this guide you will learn everything you need to know! Learn The Gardening Skillįirst thing first, you will need to gain the Gardening skill to be able to grow plants and then later fertilize them.Īs always, the best ways to gain some skill is through practice! You can easily buy some seeds online and then start your planting journey! Whether you’re planning to have some flowers, fruit and vegetables or some bigger trees like a banana tree, once you reach a certain level, you can start fertilizing! How To Fertilize Plants in The Sims 4 Once you get more and more skilled in Gardening, you will see that you can actually improve your plant’s well-being by fertilizing it. Whether you’re a natural born farmer or just someone who is beginning to plant something on your lot, you will need to know about the fertilizer in The Sims 4 game.