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Botanical Interests

Red Amposta Bulb Onion Seeds

Red Amposta Bulb Onion Seeds

Regular price $2.69
Regular price Sale price $2.69
(~130 seeds)
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Product Details

Looking for a great tasting red onion? This intermediate-day onion produces large, reddish-purple, globe-shaped onions with pretty red and white rings filled with snappy, sweet flavor. Use on sandwiches and hamburgers, in salads and relishes, or any other recipe calling for sweet red onion. Intermediate-day onions grow best across the middle of the U.S. in latitudes 32–42.

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  • Variety Info
  • Sowing Info
  • Growing Info

Variety Info

Days to Maturity: 115 days

Family: Alliaceae

Type: Intermediate-day storage onion. (Learn more)

Native: Exists only in cultivation

Hardiness: Biennial grown as an annual

Exposure: Full sun

Plant Dimensions: 3" to 4" round bulb

Variety Info: 3"–4" reddish- purple, globe-shaped, sweet onions.

Attributes: Frost Tolerant

Sowing Info

When to Sow Outside: 4 to 6 weeks before your average last frost date, or as soon as soil can be worked; when soil temperature is at least 45Β°F.

When to Start Inside: RECOMMENDED. 10 to 12 weeks before your average last frost date. Transplant outdoors 4 to 6 weeks before your average last frost date. The earlier the start, the bigger the bulb. Ideal soil temperature is 60°–85Β°F.

Days to Emerge: 7–15 days

Seed Depth: ΒΌ"

Seed Spacing: A group of 2 seeds every 4"

Row Spacing: 12"–16"

Thinning: When 2" tall, thin to 1 every 4"

Growing Info

Harvesting: When onion tops have fallen over and turned yellow or brown, they are ready for harvest. Harvest in the morning, lifting onions with a garden fork. Dry them in the garden in the sun for 2 to 3 days, lightly covering the bulbs with straw, or the tops of other onions to prevent sunscald. Cure onions for 3 to 7 days in a dry area with good air circulation. Once dry, cut the roots to 1/4", and the greens to 1" to create a seal, preventing decay.