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Utah Yellow Sweet Spanish Onion Seeds

Guarantee To Grow
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Long Day Onion
Utah Yellow Sweet Spanish Onions
SKU: ON64-250
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Country Of Origin: USA USA
Availability: In stock
$3.00
Your price: $2.50
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Giant Onion
Heirloom Variety
New Lower Price
Non Treated Seeds
Non-GMO Variety
Yellow Onion

115 days. Allium cepa. Open Pollinated. Utah Yellow Sweet Spanish Onion. The plant produces heavy yields of extra jumbo 1 lb size yellow onions. Bulbs are very mild and sweet and have yellowish brown skin. An all purpose onion perfect for soups, salads, and cooking. Cold Tolerant. An excellent choice for home gardens, Farmer’s Markets, market growers, greenhouses, open production, and commercial production. United States Department of Agriculture, PI 546100. A variety from the USA. A long day variety.

 

Lot No: 102856

Germination: 93%

Test Date: 09/2025

 

Seeds Per Pound: 144,000

 

Plant Height: 3 to 6” Bulbs

 

Planting Season: Spring

 

Sunlight Requirement: Full Sun

 

Planting Method: Direct Sow/Indoor Sow

Onions Allium cepa

 
Seed DepthSoil Temp. for GerminationDays to GerminationSunlight RequirementsPlanting Time
1/4 to 1/2"50 F to 90 F 10 to 14 daysFull Sun Spring
USDA Hardiness ZoneSeed SpacingRow SpacingSpace After ThinningDays to Harvest
N/A 3 to 4"12 - 18" 4 to 6"90 - 120 days
Onion Planting Information:

Onion seeds should be planted indoors 6 to 8 weeks before the ground can be worked. You can also plant seeds directly in the garden. Spring planting should occur as soon as the soil can be worked. Keep free from weeds. You need long sunny days to grow large onions. Shallots are very close to garlic and are very easy to grow. Plants can grow 8 to 12" tall.

Soil Requirements:

Requires fertile soil in a well-drained location in the garden. Apply mulch and grass clippings, or straw, around the base of the plant.

Water Requirements:

Keep seedlings and transplants consistently moist, but not waterlogged. Water well during dry and hot spells.

Fertilizer Requirements:

Use Slow Release (6 Month) Fertilizer when transplanting outdoors. Apply Miracle-Gro Liquid Fertilizer every two weeks.

Harvest Tips:

You can harvest onions for their green stems (scallions) at any time. Cut the green stems with garden scissors when tops are 4 - 8" tall. For bulb products, let the tops dry up by themselves before digging them up. Spread bulbs on the ground for 3 to 5 days to cure.

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