5. Proper Fertilization
As mentioned, cauliflower plants are very particular about the soil that they grow in. These plants need plenty of nitrogen in order to grow properly. In order to ensure that your plants are getting the nutrients that they need, you should apply a fertilizer that is high in nitrogen at least once every couple of weeks.
Some of the best fertilizers are liquid seaweed feed, compost tea, fish emulsion, chicken manure pellets, or a combination of chicken manure and seaweed.
If you notice that your cauliflower plants are starting to turn brown or if the tips of the leaves of the plants start to become distorted, there is a good chance that the plant is lacking the nutrient boron and you will want to make sure that there is boron in the fertilizer that you are using. Make sure that you are testing your soil regularly to ensure that it contains the proper nutrients.