gardening 16 May 2026 Daily Monitor (Uganda)

Onions: More Than Just a Culinary Staple for Your Garden

Beyond their culinary uses, onions offer significant benefits to vegetable gardens by naturally repelling pests and improving soil health. Farmers are increasingly integrating them into their planting strategies for these added advantages. Source: https://www.monitor.co.ug/uganda/magazines/farming/why-the-onion-should-be-part-of-your-vegetable-garden-plan-5461052

Onions are proving to be a valuable asset beyond the kitchen, with gardeners increasingly recognizing their benefits within the vegetable patch. Regenerative farmers, in particular, are planting onions to deter a range of pests that threaten crops like cabbages and carrots.

Annet Nagudi Mukasa, a farmer from Wakiso District, explains that planting onions around the perimeter of a garden creates a sulfur scent that repels pests such as worms and rodents. She notes that spring onions, with their stronger odor, are particularly effective. However, experts caution that this scent might also deter beneficial insects like bees, which are crucial for pollinating flowering crops such as beans and peas.

Lucky Mukasa, a regenerative farming expert, advises seeking guidance for optimal placement when using onions as pest repellents, emphasizing their role as beneficial companion plants. He highlights that their natural pest-repelling ability negates the need for synthetic chemicals, making them an eco-friendly choice.

Onions are also known for their ease of maintenance, disease resistance, long storage life, and nutritional value, being a good source of Vitamin C and antioxidants. They thrive in various soil types with minimal effort, though sandy and silty loams with good drainage are preferred.

Proper post-harvest handling is crucial for preserving onion quality. Farmers like Abbey Ssenfuma have learned the importance of well-ventilated, shady storage areas after experiencing losses due to rotting bulbs. Curing the onions for one to two weeks before storage, away from direct sunlight and high humidity, is essential. Discarding any rotting or moldy bulbs is also vital to prevent the spread of fungi and bacteria, and whole bulbs retain their nutrients better than chopped ones.

Source: Daily Monitor (Uganda)