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Giant Red Hamburger Onion Seeds

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Giant Red Hamburger Onions

SKU: ON9-250

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Country Of Origin: USA USA

Availability: Out of stock

Price: $4.00

Your price: $3.50

Overview
Planting instructions
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95 days. Allium cepa. Open Pollinated. Giant Red Hamburger Onion. The plant produces excellent yields of ruby red onions. The Onion is very crisp and flavorful. Perfect for hamburgers, salads, and sandwiches. Excellent choice for home gardens. A variety from the USA. A short day variety.

Lot No: 102807

Germination: 85%

Test Date: 09/2025

Seeds Per Pound: 144,000

Plant Height: 3 to 4” Bulbs

Planting Season: Spring

Sunlight Requirement: Full Sun

Planting Method: Direct Sow/Indoor Sow

Onions Allium cepa

Seed Depth

Soil Temp. for Germination

Days to Germination

Sunlight Requirements

Planting Time

1/4 to 1/2"

50 F to 90 F

10 to 14 days

Full Sun

Spring

USDA Hardiness Zone

Seed Spacing

Row Spacing

Space After Thinning

Days 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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Reimer seeds has over 5,000 quality vegetable, flower, and herb seeds for the home gardener and market growers. We do not sell any Genetically Modified seeds. This year we reduced our prices on many items, added new items, and have added additional bulk items by the ounce and pounds! Take time to review our impressive Online Seed Catalog. Sorry, we do not have a printed catalog to mail you. Plan your garden, and then order your varieties for this upcoming season. Please check back often, as we add new items regularly. If you don’t see an item you want you can always email us and we’ll see if we can bring it into stock!