Broccoli is a cool season plant and needs a cool environment to thrive. Ideal temperature for the growth of the broccoli floret is between 15-20 degrees Celsius. Broccoli grows best in sunny positions and gives us abundant production. If we plant broccoli in a semi-shaded position, their ripening is significantly delayed. Regarding the soil, broccoli grows best in cool and fertile soils with good drainage, while it does not thrive in very acidic and alkaline soils. Before planting broccoli, we can improve soil fertility by adding organic matter by incorporating manure and compost into the soil. Broccoli is planted from the beginning of August to the end of October, depending on the variety and the climatic conditions of the area we cultivate. To create new broccoli plants from seed, we need 6-7 weeks until they are transplanted to their final growing sites. Ideal temperatures for seed germination and plant growth are between 20-25 degrees Celsius. Sowing is carried out in early autumn.
Broccoli is less demanding than cauliflower and cabbage in terms of watering. For example, during the autumn season, we water 2-3 times a week, depending of course on the rainfall we have during this period. For potted broccoli, repeat watering only when the soil dries out. We must mention that in conditions of excessive soil moisture, broccoli is susceptible to fungal diseases that cause rotting and blackening of the plant. Conversely, when broccoli is not watered sufficiently, the flower head becomes smaller and the quality of the production is significantly degraded.