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An image of the plant grown with seed for Exhibition Onion Seeds - Giant Spanish Variety, Sweet Flavor, Ideal for Competitions & Culinary Use, Parented by 'Kelsae', Non-GMO
  • An image of the plant grown with seed for Exhibition Onion Seeds - Giant Spanish Variety, Sweet Flavor, Ideal for Competitions & Culinary Use, Parented by 'Kelsae', Non-GMO
Exhibition Onion Seeds - Giant Spanish Variety, Sweet Flavor, Ideal for Competitions & Culinary Use, Parented by 'Kelsae', Non-GMO
$4.99 CAD
Maturity

110 Days
Sunlight

Full Sun
Watering

Regular

Difficulty

Medium difficulty
Life cycle

Annual
Grow Zones

5 - 9

Quick Reference

Zones

Plant Hardiness Zones describe the average minimum winter temperature for a region. They tell you where a plant can reliably survive outdoors. For example, Zone 5 can handle colder winters than Zone 9. Matching a plant to your zone increases the chance of long-term success.

Days

  • For food crops: Days to maturity is the expected number of days from planting to first harvest. This helps gardeners plan their growing season and time their harvests.
  • For non-food plants: Days to germination indicates how long it usually takes seeds to sprout under normal conditions. This is key for starting seeds successfully.

Types

  • F1 (Hybrid): A cross between two parent varieties. Hybrids are bred for vigor, uniformity, and specific traits such as disease resistance. Seeds saved from F1 plants don’t grow true to type. That means if you try to regrow them from seed, the plant won't necessarily be the same as last year's
  • OP (Open-Pollinated): Varieties that naturally pollinate and remain stable across generations. Seeds can be saved and replanted with consistent results.
  • HM (Heirloom): An open-pollinated variety that has been handed down for many generations. Heirlooms are valued for flavor, tradition, and genetic diversity.

Grows

  • Outdoors: Well-suited for garden beds, raised beds, or open soil, where natural conditions are stable.
  • Windowsill: Compact plants that thrive in containers indoors, often needing only modest light.
  • Anywhere: Highly adaptable plants that perform reliably in both indoor and outdoor settings.

Lifecycle

  • Annual: Grows, flowers, sets seed, and dies in one growing season. Many vegetables and flowers are annuals.
  • Perennial: Lives for multiple years, regrowing each season after going dormant. Often used in landscaping or long-term food crops.
  • Sp. Perennial (Self-Perennializing): A plant that reseeds itself or self-pollinates, giving the effect of perennial growth even if individual plants live shorter lives.

Size

Indicates the recommended container size or soil depth for best growth.

  • “X″ Pot”: The ideal pot diameter (e.g., 5″ Pot), ensuring enough root space.
  • DS (Deep Soil): Requires planting directly in the ground or in a deep raised bed, as shallow pots restrict growth.
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  • Gigantic Bulbs: Produces large, heavyweight onions, perfect for agricultural shows and kitchen use.
  • Growth Requirements: Thrives best when started indoors in mid to late March; transplant in warm soil, maintaining 18-inch row spacing.
  • Extended Growing Season: 110 days from planting to harvest, allowing the development of exceptionally large onions.
  • Versatile Culinary Uses: Exhibits a remarkably sweet flavor making it ideal for both fresh salads and caramelized dishes.
  • Robust Variant: Descendant of the famous 'Kelsae' variety, known for its record-setting size and sweet taste.

Unlock the potential of your garden with Exhibition Onion Seeds, a premier selection for both competitive gardeners and culinary enthusiasts. Derived from the prestigious 'Kelsae' variety, these onions promise not only impressive size but also a delightful sweet flavor. Perfect for showcasing in agricultural shows or enhancing your favorite dishes, these seeds are a must-have for any serious gardener.

Begin your cultivation journey indoors in mid to late March, ensuring seedlings are robust and ready for transplanting once the soil warms. With a growth period of 110 days, these onions will reach their full potential, delivering gigantic bulbs that are as versatile as they are flavorful. Whether you're aiming for a prize-winning harvest or simply want to enjoy the unique taste in your meals, Exhibition Onion Seeds are your go-to choice for an exceptional gardening experience.
Size
How much seed do I need?

Seeds per gram: 250
Average germination rate: 85%

Package sizes

  • 75 seeds — 64 plants — produces about 64 large bulbs
  • 500 seeds — 425 plants — produces about 425 large bulbs
  • 1000 seeds — 850 plants — produces about 850 large bulbs
  • 5000 seeds — 4250 plants — produces about 4250 large bulbs

Plant growth and coverage

  • Upright, non-branching habit with oversized bulb potential
  • Height: 30–60 cm (12–24 in)
  • Spread: 10–20 cm (4–8 in)
  • Spacing: 20–30 cm (8–12 in) in-row; rows 45 cm (18 in) apart
  • 110 days to maturity; one large bulb per plant

Choosing a packet size

  • The 75-seed packet is ideal for home gardeners trialing exhibition onions or filling a few raised beds.
  • The 500-seed packet suits small market growers or avid gardeners planning succession plantings and show entries.
  • The 1000-seed packet works for larger gardens or community plots aiming for consistent, sizable harvests.
  • The 5000-seed packet is best for market growers, clubs, or landscapers establishing extensive beds or coordinated show plantings.
GROWING INSTRUCTIONS

Start Exhibition Onion seeds indoors in mid to late March using soil packs or a 20-row seed flat. Keep seedlings trimmed to about 4 inches to encourage strong growth. Use a light, well-draining soil mix to provide the best start.

Once the soil warms up in spring, transplant the seedlings outdoors. Ensure that the rows are spaced 18 inches apart with 6 inches between each plant. Gradually harden off the seedlings by exposing them to outdoor conditions for a few hours each day over a week before transplanting.

Provide regular watering and feed with a fertilizer mix of 10-52-17 along with liquid seaweed bi-weekly. Keep the area weed-free and ensure good air circulation. Harvest onions when the tops begin to yellow and fall over, typically around 110 days after planting. Enjoy their sweet flavor in a variety of dishes.
SHIPPING & RETURNS

In Canada, we use fast shipping from our Canadian warehouses. You can expect delivery in 1-3 days.

In the USA, We use our US warehouses, and you can expect your order in 1-3 days, too.

No postaged lettermail or slow shipping from across the world. No customs fees or orders withheld at the border. Tracking numbers for all orders.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible. Our return policy covers you for late, damaged or defective products.

 Read Our Shipping & Returns Policy

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