Discover how to achieve a bountiful harvest of bulbs and spring onions, maximizing your yield and returns.

Key takeaways
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- Spring onions typically require approximately 8 weeks (2 months) to mature.
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- Spring onions are the most straightforward variety to cultivate and can grow well even in a home garden.
How many months does an onion take to mature?
Affecting the length of time it takes for something to become mature.
- From seeds: Onions grown from seeds take the longest time to mature and require a lot of patience to care for the seedling through each stage. Nevertheless, this method provides the best results.
- You can begin planting using young, immature bulbs that will mature in approximately 3-4 months.
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It is highly recommended to have the soil tested by recognized laboratories. Furthermore, onions tend to grow more successfully during the short rainy seasons, as excessive water can lead to the crop becoming waterlogged.
If you want to cultivate onions in areas with low humidity and high temperatures, you can consider investing in a greenhouse and water your plants using a drip irrigation system. Make sure to obtain the suggested fertilizer and seedlings for your project.
Quick-maturing onion varieties

In a kitchen garden, spring onions are simple to cultivate and can thrive. You can cultivate spring onions either from seedlings or transplants. Seedlings take 10 days to germinate, and transplanting is done after a period of 4-6 weeks.
Other onion varieties that mature more quickly include:
- They can be harvested within 20-30 days.
- They take around 60 days, or 2 months, to fully mature.
- This type of onion bulb takes approximately four months to mature.
- This red onion typically takes approximately 95 days to reach maturity.
When are your onions ready to be picked?
Harvesting onions usually takes around 4 months after planting, depending on the type and cultivation method. When you notice these signs, stop watering the plants to let the soil dry out, then carefully lift them out and let them cure in a well-ventilated area for 1-2 weeks before storing.
- The green shoots are now drooping, indicating that the buds have stopped developing.
- The bulb size is between 2 to 4 inches in diameter.
- The outer skin of the onion becomes dry and dehydrated.
- For spring onions, they are ready to be picked when they reach a height of 6-8 inches and can be pulled out of the ground with ease.

Frequently asked questions
- What is the quickest method for cultivating onions? The quickest method for cultivating onions is by utilizing transplanted seedlings, shortening the process by approximately one month.
- What is the ideal time to plant onions in Kenya? The optimal time to plant onions in Kenya is during the brief rainy season, in order to avoid excessive waterlogging.
- To produce large onion bulbs, the type of seedling is a crucial factor. Nonetheless, adequate nutrients and sufficient sunlight exposure also significantly impact the bulb size.
- What contributes to onions growing more quickly? The time it takes for onions to reach maturity is mainly determined by the planting method. Planting onion seedlings or using pre-formed onion sets can shorten the duration by approximately one month.
- It typically takes spring onions around 8 weeks to reach full maturity.
Final word
How long does it take for onions to mature? The length of time it takes for onions to mature depends on the type of seedling and planting method you choose. Generally, most onion varieties take anywhere from 3 to 5 months to mature. Due to their high demand, onions can be a valuable investment for gardeners who follow proper gardening techniques.
Planting spinach starts with preparing the nursery bed and placing your seedlings. The seedlings are transferred to the field at 4-5 weeks old. Please refer to the complete guide in the article above.