Climate and Seasons
Cauliflower grows generally during cold season, and requires optimum temperature conditions to produce the edible bud of the cauliflower. Cauliflower is now able to adjust to diverse range of climatic condition, mostly in temperate tropics and tropical parts. Since it is a cold season vegetable, optimum temperature for its growth ranges between 18 to 20°C, something required from vegetative to curding phase transition. The tropical variety although is able to grow even at 35°C. In temperate region, if the temperature is about 0°C, the young seedling growth may stop. If it is subjected to very high or low temperature, it tends to form small curds and also causes yellowing and raciness of the curd.
Cauliflower can adjust itself to almost all types of soil with good soil fertility and regime. For the early budding cauliflower light soil is most suitable but this requires optimum moisture supply as crops grown on light soil are generally drought tolerant. Generally during summers, the crops are grown in soil that has high moisture retain capacity as unavailability of water and moisture may affect curd formation. During winters, soils which dry rapidly after rains are preferred so that cultivation can be done in a proper way. Mid season and late maturing types can grow easily on loamy and clay loam soils. It is advisable not to grow cauliflower in high PH or acidic soil, as they are magnesium deficient and cauliflower has high magnesium requirement. Cauliflower is sensitive to boron and molybdenum deficiency and also is found to be sensitive to soil salinity. In short, cauliflower can be grown best in highly fertile, well drained with good retention capacity soil with a pH range of 6 to 7.