ever wondered how to grow cauliflower? cauliflower seeds as long as you use a polytunnel or greenhouse as they need to be undercover. Cauliflowers should be grown in firm soil and react badly to poor cultivation techniques. Follow our instructions for the ideal brassica bed and you’re likely to be successful. Cauliflowers are very hungry plants and need plenty of nitrogen to grow well. Getting the soil right for this vegetable is crucial, below is a link that will help with this.http://www.allotment-garden.org/vegetable/brassica-information/how-to-grow-great-leaf-brassicas/