The Benefits and uses of a Garden Planner Why Should You Use A Garden Planner? A garden is not as simple as it sounds. If you are wanting your garden to be a success and produce you a multitude of crops, then you will need to do a little bit of planning. A garden planner will help you throughout your entire growing season. By having a planner for your garden you will be able to keep track of when you plant the different crops and the weather that your garden has received. Both of these sets of information will be invaluable when you are trying to predict when your garden will start to produce. The planner will help you to time when your different crops should be planted to yield the most results.