Best Tips for Growing Onions
- Onions can be started from seeds, sets, or plants.
- Start your seeds in early spring for harvest in late summer to early fall.
- Sets, which come from previous year’s seed, can be re-sown the following year.
- Loose soil and early planting when combined with cooler starting temperatures yields the best results.
- If correct soil composition can not be achieved, raised flower beds should be used.
- Create shallow trenches in which you place the onions an inch deep and five inches apart.
- Water onions to about an inch deep into soil once a week.
- Extra tip:
- The Melnor HydroLogic® 2-Zone Digital Watering Timer will let you water on specific days, or every few days; perfect for growing onions.
- Make sure to maintain your trenches and remove weeds as needed because they can compete for nutrients causing the onions to lack the size desired.
- Larger onions grow more often from the sets of previously sown seeds than from seed.
- Bigger size can also be attributed to fertilizer or compost being used in the soil.
- After picking the onions in late summer, leave out to dry in the heat for a couple days.
- Store in a cool, dry area for optimal results.
- Once cut, onions must be preserved in airtight bags to retain moisture.
Nikki Tilley, “Onion Info – Tips For Growing Big Onions” Gardening Know How, March 30, 2021, accessed July 14, 2021, https://www.gardeningknowhow.com/edible/vegetables/onion/onion-info-tips-for-growing-big-onions.htm.