Caring for the plants is more than merely adding fertilizers or watering. At any given time, the atmospheric conditions and other factors affecting growth need to be perfect. At any given time, though, something may come up - a disease or some pest infestation. Other problems - like temperature, humidity, pH - could strike. All these causes undue stress on the plants, hindering growth. If you do run into a wall, then you can leave questions here and have other people help you solve whatever is thrown your way.
What’s best way to prevent disease