There are many species of cabbage, all belonging to the Cruciferae family, but very different from each other: many are grown for the head, some for the inflorescences (broccoli and cauliflower), others for the stem that has the shape of a round ball (kohlrabi). Cauliflower, kohlrabi and savoy cabbage prefer a temperate climate, they tolerate the cold very well, while they fear drought. The most delicate is broccoli, which hates frost and wants mild winters. Ideal for colder climates is cabbage and black cabbage, which is more tender and tasty after a freeze. The optimal soil is fresh, medium-textured, deep and free of water stagnation; rich in humus for broccoli and cauliflower. To enrich the soil with humus and organic matter, it is advisable to integrate it into the soil before its preparation,
It is advisable to enrich the soil with Ammendante Stallnutrix a few months before sowing (if you have previously added organic fertilizer or manure, just use half the dose). Irrigation will be frequent and abundant, especially after transplanting. When the plants reach a height of about 15-20 cm it is useful to intervene with further fertilization of Universal organo-mineral fertilizer.
It is advisable to close the leaves on the head of the cauliflower to prevent it from taking on color. When transplanting kohlrabi, be careful not to bury the collar, otherwise, the turnip will not form.
Cauliflower: between May and August in seedbeds (use for sowing in seedbeds, alveoli or jars Ammendante Stallnutrix); transplanted into the garden after about 40 days, when the seedlings are 15-20 cm high. Savoy cabbage: early varieties are sown between August and September, summer-autumn ones between January and May, late ones in spring, with similar methods to cauliflower. Kohlrabi: can be sown in a seedbed, or directly in the vegetable garden in May. Cabbage: spring varieties are sown between August and September, summer-autumn ones from January to May, winter ones between May and June, in a seedbed. They transplant when the seedlings have 3-5 leaves. Black cabbage: in April-May in seedbed; transplant when the seedlings have 5 leaves, after about 50 days.
Watering and fertilizing
It is advantageous to combine cauliflower, cabbage or black cabbage with different vegetables, such as lettuce and spinach (contrasts the attic), tomato (prevents the cabbage fly), celery (useful against cabbage). It is better not to associate different species of cabbage and not to grow it alongside potatoes, onions, and onions.
They are more sensitive to attacks by Aphids, Nocturnes, Tentredini, and Snails. In addition, they must be kept under control to avoid Alternaria and Ruggini.