Ailsa Craig Exhibition, Onion Seeds

Ailsa Craig Exhibition, Onion Seed

Packet
$4.90
Sale price  $4.90 Regular price 
Skip to product information
Ailsa Craig Exhibition, Onion Seeds

Ailsa Craig Exhibition

Onion Seed

Select size: Packet
  • Legendary exhibition onion can reach astonishing five-pound proportions
  • Pale golden bulbs develop exceptionally mild, sweet flavor
  • Long growing season rewards attentive gardeners with showstoppers
  • Perfect for competitions, impressive slices, and sharing

Key Attributes

Botanical Name
Allium cepa
Days to maturity
110 Days
Sun
Full Sun
Packet
250 Seeds

About Ailsa Craig Exhibition, Onion Seed

Ailsa Craig Exhibition is a large onion that has a unique mildly sweet flavor! This plant produces on the average a huge 5 lb. sweet white onion that has a delicious flavor in many dishes. Impress your neighbors and try growing this World Record sized onion.

Growing details

Planting

Sow Depth
1/8"
Days to Germination
7–14 days
In-row plant spacing
3-4"
Row Spacing
12-18"

Plant profile

Maturity
Summer
Life Cycle
Annual
Plant Height
30 inches
Growth Habits
Clumping, Upright
Type
FULL SIZE ONIONS

Seed & variety

Seeds Per Ounce
8,000
Color
Yellow
Seed Type
Open Pollinated
Growing Season
Cool-Season Crop
Categories
Onion
Features

Key Attributes

Botanical Name
Allium cepa
Days to maturity
110 Days
Sun
Full Sun
Packet
250 Seeds

About Ailsa Craig Exhibition, Onion Seed

Ailsa Craig Exhibition is a large onion that has a unique mildly sweet flavor! This plant produces on the average a huge 5 lb. sweet white onion that has a delicious flavor in many dishes. Impress your neighbors and try growing this World Record sized onion.

Growing details

Planting

Sow Depth
1/8"
Days to Germination
7–14 days
In-row plant spacing
3-4"
Row Spacing
12-18"

Plant profile

Maturity
Summer
Life Cycle
Annual
Plant Height
30 inches
Growth Habits
Clumping, Upright
Type
FULL SIZE ONIONS

Seed & variety

Seeds Per Ounce
8,000
Color
Yellow
Seed Type
Open Pollinated
Growing Season
Cool-Season Crop
Categories
Onion
Growing Instructions

Growing Instructions

Before Planting

For Onion, select a full-sun location with fertile, loose, well-drained soil. Incorporate compost and use a soil test to correct phosphorus, potassium, and pH while avoiding fresh manure. Select the correct short-, intermediate-, or long-day type for your latitude, and prepare a smooth, weed-free bed before sowing or setting transplants.

Planting

Start onion seed indoors 10–12 weeks before the last spring frost, or direct sow as soon as the soil can be worked. Give indoor seedlings strong light and steady moisture, harden them gradually, and transplant while weather is cool. Thin bulb onions to 3–4 inches apart.

Watering

Provide about 1 inch of water weekly, keeping moisture steady while bulbs enlarge. Water at soil level and avoid saturation; reduce and then stop irrigation as tops naturally fall and bulbs approach maturity.

Fertilizer

Apply nitrogen in light side-dressings during early leaf growth, following soil-test recommendations. Stop feeding once bulbs begin enlarging; late nitrogen delays maturity and reduces storage quality.

Harvesting

Harvest onions when most tops naturally yellow and fall. Lift bulbs gently rather than pulling, then cure them in a warm, dry, ventilated place until necks and outer skins are fully dry.

Tips

Keep beds weed-free because onions compete poorly. Gently expose bulb shoulders as they enlarge rather than hilling soil around them, and select the proper day-length type for your latitude.

AVG. Seeding Rate

1 oz./25', 1M/50', 5M/250', 25M/1,250', 580M/acre at 20 seeds/ft., in rows 18" apart.

Pests & Diseases

Onion seed can introduce Botrytis neck rot, downy mildew, purple blotch, and bacterial diseases; damping-off threatens young seedlings. Purchase tested seed, use sanitized trays, and avoid overly dense sowing. Rotate alliums, keep leaves dry, and discard seedlings with basal softening, water-soaked lesions, or abnormal twisting.

Onion thrips, onion maggots, leafminers, and cutworms are common. Rotate allium crops, use insect netting early, remove cull bulbs and residue, and inspect folded leaves for feeding damage.

Our Promise

Our Promise

Urban Farmer

Satisfaction Guarantee

At Urban Farmer, we believe every great garden begins with dependable products and seeds you can trust. We’re committed to helping gardeners and growers succeed—from planting to harvest.

100% Non-GMO Seed
Every Urban Farmer seed is guaranteed to be non-GMO and free from genetic engineering.

High-Quality Seed
We carefully select dependable varieties for strong performance, uniform growth, excellent flavor, and rewarding harvests. We produce many varieties on our Indiana farm and work closely with trusted growers across the United States.

100% Satisfaction Guarantee
Your satisfaction matters to us. If you aren’t satisfied with your purchase, we’ll provide a replacement or refund the purchase price in accordance with our guarantee.

Whether you’re planting your first garden or growing on a larger scale, you can count on Urban Farmer for quality products, helpful service, and support throughout the growing season.

Set your growing zone

Enter your zip code and we'll show whether each variety grows in your USDA hardiness zone.

Or
Ailsa Craig Exhibition, Onion Seeds

You May Also like