Contrary to its name, spring onions are not only in season in spring. It can be sown over a long period of time. But what exactly is required for a promising sowing with a subsequent successful harvest?
When and how should you sow spring onions?
Spring onions should be sown directly outdoors between March and May, ideally late March to early April, for a good harvest in June. Choose a sunny location with loose, nutrient-rich soil and sow the seeds 1-2 cm deep in grooves.
The right timing
Spring onions are usually sown directly outdoors between March and May. The ideal period is between the end of March and the beginning of April. If you then sow the spring onions, you can expect a good harvest in June.
You also have the alternative of growing the seeds under glass in February and planting the young plants outdoors at the beginning of April. In addition, it is possible to sow the spring onions in late summer (August/September) and finally harvest them the following spring between April and May.
Your requirements for location and soil
Spring onions prefer to grow in sunny locations. They are also content with partial shade. A location that is not completely protected from the wind is also recommended. Otherwise this would promote the development of fungal diseases.
Before you get started, you should take a look at the substrate. The spring onion needs loose and finely crumbly soil to grow and thrive he althily. It should be deep and prevent waterlogging from forming. The plants also benefit from a high nutrient content.
The sowing itself
In the world of spring onions, you are spoiled for choice among the different varieties. The recommended varieties include:
- ‘Negaro’ (white)
- ‘Ishikura’ (white)
- ‘Reds of Florence’ (red)
- ‘Tonda Musona’ (white)
- ‘White Lisbon’
- ‘Lilia’ (violet)
- ‘Freddy’ (white)
After you have decided on a variety, you can get started:
- 1. Dig soil 30 cm deep
- 2. Create rows 25 to 40 cm apart
- 3. Scatter seeds 1 to 2 cm deep in grooves
- 4. Cover seeds with soil
- 5. Pour on
- 6. Germination time: 10 to 20 days at a temperature between 15 and 25 °C
Tips & Tricks
Equipped with a pot or a planter, you can sow spring onions just as well on the balcony, terrace or on the windowsill.