When to Plant Overwintering Cauliflower? A Detailed Guide to the Suitable Dates

Cauliflower is an annual plant of the Brassica genus in the cruciferous family, native to the eastern coast of the Mediterranean and introduced to China around the early 19th century, so when is the planting date for overwintering cauliflower?

1. Growth Habits of Cauliflower

As an annual plant of the Brassica genus in the cruciferous family, cauliflower has high nutritional value and anti-cancer properties. Cauliflower is rich in various indole derivatives and has the ability to break down carcinogenic substances, and it has also been listed as a health food.

Cauliflower has a well-developed root system and strong regeneration capacity, making it suitable for raising seedlings and transplanting. Below 0°C it is prone to freeze damage, and above 25°C it struggles to form curds. Leaf growth and bolting and flowering require warmth, with an optimum temperature of 20-25°C.

Curd formation must go through a low-temperature vernalization stage. Cauliflower is not strict about light conditions, but it is relatively strict about water, being neither tolerant of waterlogging nor of drought. It adapts well to soil, but sandy loam with high organic matter and deep soil layers is best. The suitable soil pH is 5.5-6.6. It is highly salt-tolerant, and can still grow normally in soil with a salt content of 0.3%-0.5%.

2. Planting Dates for Overwintering Cauliflower

Overwintering cauliflower is generally planted around October, but the specific sowing time needs to be determined according to the local climate and the cauliflower variety. Different regions and varieties will have slight differences in planting dates, so the actual date shall prevail.

3. What Types of Cauliflower Are There

1. Very early-maturing varieties

These cauliflower varieties are suitable for high-temperature cultivation, with early flower bud differentiation, strong heat and moisture tolerance, and 30-40 days from transplanting to harvest.

2. Early-maturing varieties

These cauliflower varieties have relatively strong heat and moisture tolerance, and generally take 50-60 days from transplanting to harvest.

3. Mid-maturing varieties

These varieties differentiate flower buds later, are less heat-tolerant, and relatively low-temperature tolerant. From transplanting to harvest, 70-90 days

4. Late-maturing varieties

These varieties are not heat-tolerant, differentiate flower buds later, and are low-temperature tolerant. From transplanting to harvest, they need more than 90 days.