When it comes to soil, cauliflower is a bit finicky. To grow the best cauliflower you are going to need to use soil that has a high amount of nutrients. In addition, the soil has to be well watered all throughout the growing season.
Before you plant your cauliflower you are going to want to make sure that you test the soil and make sure that it is not missing any nutrients that the plants require.
There are soil testing kits available that will inform you of what your soil might be missing. If you discover that your soil is nutrient deficient you can add manure to it in order to boost the nutrient content. You may also choose to add fertilizer to the soil in order to improve its overall nutrient supplies.
Taking the time to make sure that your soil has the proper nutrients will go along way when it comes to growing cauliflower.