At Agrotonomy, in our Tower Farms, aside from growing the traditional white cauliflower on aeroponic towers, we also grow purple and other varieties such as green and yellow/orange.
The cultivation of purple cauliflower dates back to ancient times in the Mediterranean region. It is believed to have originated from Sicily. Purple cauliflower, from its name, is a cauliflower variety that has a deep purple color. Its vibrant color is due to the presence of anthocyanins, a flavonoid known for its antioxidant properties.
Anthocyanins aid in regulating blood sugar level and lowering the risk of cancer. Just like other varieties, purple cauliflower is also rich in vitamins and minerals, including vitamin C, vitamin K, and folate. In addition, it is high in fiber, which helps in promoting a healthy digestive system.
Compared to its white counterpart, purple cauliflower has a sweeter and nuttier flavor.
When growing cauliflower, it is important to have a proper planting strategy. The seedlings should be planted on the first day of autumn to be able to harvest it in the winter. Otherwise, if the plan is to harvest the cauliflower on the first day of spring, the seedlings should be cultivated on the first day of winter.
The process of growing cauliflower demands patience, as it typically takes about three months for it to fully mature and become ready for harvest.
Aside from the cauliflower head, the leaves are also edible, they can be eaten raw or cooked – stir-fries, sautés, soups, and salads.
Through our innovative vertical farming system, we have successfully grown 11 purple and green cauliflowers on a single aeroponic tower within less than one square meter without the use of soil, just water mixed with a 100% natural ionic mineral nutrient solution.
Check out the videos below to see how we cultivate purple cauliflower and other cauliflower varieties: