How many days does it take for onions to sprout after being planted?

Onions generally refer to red shallots, which are also called red onions, round onions, etc. They are widely grown in China. If you want to grow onions with high yield and quality, you need to understand the planting techniques. So how many days does it take for onions to sprout after being planted? Let’s take a look below.

1. How many days does it take for onions to sprout after being planted?

Onion seeds usually germinate and emerge from the soil in about 7-14 days under suitable conditions. Onion germination is affected by temperature, humidity, soil conditions and seed quality.

2. Factors affecting onion germination

1. Temperature

The temperature suitable for onion seeds to germinate is generally between 13℃ - 20℃. If the temperature is too low, germination will become slow or even stagnate; if the temperature is too high, it may affect the vitality of the seeds and lead to a lower germination rate.

2. Humidity

Maintaining a certain level of soil moisture is conducive to the germination of onion seeds. After sowing, the soil should be kept moist, but not waterlogged to prevent the seeds from rotting due to lack of oxygen. Generally speaking, soil moisture is more suitable at around 60% - 70%.

3. Soil conditions

Loose, fertile, well-drained soil helps onion seeds germinate. If the soil is too compacted, it will hinder the respiration of seeds and the growth of roots; if the soil is too poor or the pH value is not suitable, it will also affect the germination and growth of seeds.

4. Seed quality

High-quality seeds have a high germination rate and germinate quickly. When purchasing onion seeds, you should choose regular channels to ensure the quality of the seeds. At the same time, the seeds can be treated, such as soaking and germination, to increase the germination rate and speed.

3. The correct way to plant onions

1. Choose the variety: Choose a variety of onion that is suitable for your growing area and climate. There are different varieties of onions, including regular onions, shallots, and onions, among others.

2. Choose the planting time: Onions can generally be planted in spring and autumn. Spring is suitable for early-maturing varieties, while autumn is suitable for late-maturing varieties. Make sure the temperatures are moderate and avoid planting during extremely cold or hot periods.

3. Prepare the soil: Onions prefer loose, well-drained soil. Organic fertilizer can be applied in the early stage of plant establishment to ensure that the soil is rich in nutrients.

4. Sowing or transplanting: Sprinkle the onion seeds evenly on the prepared soil, compact it slightly and cover it with a thin layer of soil. If using onion seedlings for transplanting, insert the seedlings into the ground, keeping appropriate spacing.

5. Spacing and depth: The spacing and depth of onions depends on the variety, but generally speaking, the row spacing should be around 15-20 cm and the plant spacing should be 5-10 cm. The sowing depth is generally 1-2 cm.

6. Keep moist: Make sure the soil remains moist, but avoid overwatering as this may cause disease. Keeping the soil moist is essential for the growth of onions, especially in the seedling stage.

7. Fertilization: During the growth of the onion, apply appropriate amount of suitable vegetable fertilizer to help the development of its stem.

8. Weeding and loosening the soil: Remove the surrounding weeds in time and keep the soil loose. This helps the onions grow and develop.

9. Harvest: The growth cycle of onions is short and they can usually be harvested in about 70-90 days. Depending on your needs, you can choose to harvest the onion seedlings early or wait until the onions are fully grown.

10. Pay attention to pests and diseases: Check the onion plants regularly to detect and deal with possible pest and disease problems in time to keep the plants healthy.

That’s it