How to Grow Cebollas

"Cebolla" is the Spanish word for "onion." For the home gardener, it's usually easiest to grow onions from sets rather from seed or young seedlings. Sets are year-old onion plants, and they're available for purchase at nurseries and online. Plant onion sets in the spring as soon as you're able to work the soil and temperatures are consistently above 48 degrees F.

Tiller
Organic matter
Fertilizer
Trowel
Garden hose

Instructions

- 1
  Till the soil about 8 to 10 inches deep, mixing in 3 to 4 inches of organic matter such as peat moss or compost. Mix in a granular fertilizer labeled 5-10-10 or a similar 1-2-2 ratio at a rate listed on the label. If you have a soil-fertility test, fertilize per lab recommendations.
- 2
  Divide the onion sets according to their size. Ones that are smaller than the diameter of a dime, according to University of Minnesota, grow the biggest and are best to grow into large onions. Grow the sets that are larger than a dime as green onions, which are harvested while they're still immature.
- 3
  Plant the larger sets 1 inch deep, with their tips facing up. Space them closely so that they touch each other. Plant the smaller bulbs 1 to 2 inches below the soil and 3 inches apart. Leave 12 inches between rows.
- 4
  Tamp down the soil and water the onions with 1 inch of water. Keep the garden bed free from weeds, and water them with 1 inch of water every week. When the onions you grow as green onions reach more than 4 inches in height, cover the shoots a bit with soil so the bottoms of the stalks turn white and crunchy.
- 5
  Harvest green onions anytime after the shoots grow 6 inches tall. Harvest larger dry onions after at least 25 percent of the tops begin to droop.

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