Onions are one of the most cultivated vegetables ever in family gardens, above all because this vegetable is used very often in the kitchen, as it is practically essential in any sauce, risotto, or soup.
The onion can be put in the field even without planning gradual sowing: after the harvest, it is kept for a long time. In our website has dedicated a complete guide to onion cultivation, below we go to deepen the moment of sowing, highlighting the period, the most suitable moon phase, and planting sixth.
Starting from the seed
Speaking of onion sowing we mean the cultivation that starts from the actual seed, alternatively, you could also buy already made seedlings in the nursery or buy cloves to put in the ground.
Onion seeds are produced by the flower, which growers do not always see being born since the plant is usually removed before flowering to harvest the vegetable.
Getting the seeds is very simple: just leave a plant in the field, waiting for it to form the unmistakable ball flower with white petals in the second year. The onion flower must be dried to then reap the many seeds contained in it. Sometimes the onion mounts ahead of time, as explained in the article dedicated to its flowering.
Start with the clover
Onion cloves are an excellent shortcut for those who don’t have much time. Starting from the bulb you have a more simplified sowing operation and you can save up to ten days compared to the crop cycle.
When sowing onions
Sowing period. There is no single sowing period for onions: the right time depends on the climate and the variety that you choose to grow, there are more or less early onions and above all, there are varieties grown in winter and spring varieties. Winter onions are suitable for planting in autumn (between September and October) and overwintering in the field, while spring onions are planted in seedbeds from February to March, or in the field between March and April, for the summer harvest. You need to know the variety to decide whether to put it in the garden in winter or spring, making a mistake can affect the harvest because in adverse conditions the plant will flower.
When transplanting. The onion seedlings are transplanted about 40/60 days after sowing when they reach a height of about 15 cm.
Moon phases: in which moon to sow
In cultivating the onion we are interested in being able to collect the “bulb” or a part that grows underground, for this reason, according to the popular tradition of the lunar calendar, it is necessary to sow on a waning moon. The crescent moon phase is said to favor the aerial parts of the plant, therefore it is not suitable for the onion, which could even flower if sown in this phase, the waning phase instead is indicated as favorable for bulb or root vegetables, of which the onion is a full part.
Sowing depth and planting distance
The seed of the onion is small, so it must not be put too deep, 15 mm underground is enough. The onions are arranged at least 20 cm apart between one plant and another, it is better to do it along rows, leaving 30/40 cm between one row and another.
The right sowing distance is important because periodically it will be necessary to hoe and weed the soil, the hoe must be able to pass comfortably between the rows. Vegetables that are too close together would also steal space, light, and nutrients and would not grow properly. It may make sense in a small vegetable garden to sow the onions closer to the sixth indicated and then when they sprout to thin out the excess seedlings, in this way you select the best ones and prevent ungerminated seeds from leaving holes in the plot.
Where to find organic seeds
The quality of the seeds is important, and onion seed lasts a couple of years, after which the chances of it being able to germinate decrease. The ideal is to make your own seeds for one year with another and perhaps exchange them with other horticulturists. In this way, ancient and local varieties can be reproduced, safeguarding biodiversity.
If you decide to buy sachets of seeds, the advice is always to choose certified organic seeds, the Demeter certification relating to biodynamics offers further guarantees on cultivation methods and the absence of toxic products. If you want to have the ability to reproduce the seeds of your onions, you should not buy F1 hybrid seeds, which give life to sterile plants or weak offspring.
Before sowing: tillage of the soil
The onions must be sown on well-worked soil: it is important to proceed with a digging, subsequent hoeing of the clods, and the preparation of a well-chopped seedbed. The tillage of the soil before sowing is useful because the soft soil favors the bulbs to swell, as it is below ground level, furthermore, a worked land drains the water better, avoiding stagnation that would cause the bulb to rot. Fertilization is not essential if you have fertile land, the onion is a plant that is also satisfied with the residual fertility left by previous crops.
Recipes with onion
Tuna sauce with onions recipe/ Zucchini omelet with onion recipe/ Onion gratin recipe/ Onion flowers with herb dip recipe/ Salsiccia with roasted nuts and onions recipe/ Onion soup with gruyère bread/ Caramelized Onions recipe/ Onion jam recipe.
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