Grow huge, mild onions with Ailsa Craig Long-Day Onion. This open-pollinated variety produces jumbo to colossal bulbs with light yellow skins and a round to teardrop shape. Slice a freshly harvested bulb for a sandwich or roast generous wedges for a tender, savory side. Choose 60, 80, 100 or 200 pelleted seeds.

Match the onion to your location: Ailsa Craig is a long-day onion adapted to approximately 38° to 60° latitude. Choose it for suitable northern growing areas rather than expecting full-size bulb production in southern Texas. Use the mild bulbs fresh or for short-term storage; this is not a long-storage substitute for Patterson.

Germination Rate: 90%. Test Date: 08/26. JSS.

Texas Minimum Germination Rate: 70%

Why Choose Ailsa Craig Onions?

• Mild flavor: Sweet, mild bulbs are useful for fresh slicing as well as cooked dishes.
• Impressive size potential: Jumbo to colossal bulbs develop under suitable growing conditions; individual results vary.
• Light yellow bulbs: Round to teardrop-shaped onions provide generous slices and wedges.
• Fresh-use harvest: Plan meals around the harvest and use bulbs fresh or in short-term storage.
• Easier seed placement: Pellets improve visibility and handling during sowing.

Planting Tips for Success

• Plan for day length: Choose this variety where long summer days support bulbing. Follow your regional onion planting calendar.
• Start early: Start indoors approximately 8 to 12 weeks before your local transplant window, or direct sow where the growing season allows.
• Sow shallowly: Plant approximately 1/4 inch deep in fine seed-starting mix or prepared soil. Keep moisture even while pellets soften and seedlings emerge.
• Provide space: Set established seedlings approximately 4 to 6 inches apart, using wider spacing within that range for larger bulbs. Avoid deeply burying the neck.
• Sun and soil: Choose full sun and fertile, well-drained soil enriched with mature compost.
• Water and fertilize: Water consistently without waterlogging. Feed according to soil-test results and fertilizer-label directions; avoid excessive late nitrogen.
• Support and harvest: Staking is unnecessary. Allow tops to fall naturally as bulbs mature, then harvest when conditions permit drying.
• Handle gently: Dry mature bulbs in a sheltered, well-ventilated place. Use damaged bulbs promptly and check stored bulbs regularly. Plan for short-term storage rather than months of keeping.

What Are Pelleted Seeds?

A coating gives seeds a more uniform shape for easier handling and spacing. Keep the seedbed evenly moist while pellets soften; pelleting does not guarantee emergence. Learn more about pelleted seeds.

Why Choose David's Garden Seeds®?

• Veteran-Owned: Supplying premium seeds since 2009.
• GO TEXAN Certified: Supporting local agriculture and communities.
• Integrity Pledge: David's Garden Seeds has taken the Seed Integrity Pledge.
• Vegetable Seed License: David's Garden Seeds has been granted a Vegetable Seed License for the State of Texas.
• Great Customer Service: David answers all customer service questions, usually within a few minutes.

Cooking Methods

• Fresh slices: Add thin slices to sandwiches, salads and burgers for mild onion flavor.
• Roasted: Roast wedges until tender with browned edges.
• Sautéed: Gently cook chopped onions as a flavorful base for everyday meals.
• Caramelized: Slowly cook slices, stirring regularly, for a rich topping.
• Soups and stews: Add diced onions early in cooking to build savory depth.

Order Ailsa Craig Pelleted Onion Seeds Today

Choose your packet size and grow a harvest of huge, mild onions for your northern garden.

Nutritional Information

• Harvested produce: Nutrition refers to edible onion bulbs, not planting seeds or coating.
• Variety-specific analysis: Verified serving-based nutrient amounts and % Daily Value figures for Ailsa Craig onions are not available in this listing.

Nutrient content varies with growing conditions, serving size and preparation. No variety-specific nutrient figures are claimed.

Important Disclosures

• Variety Disclaimer: Bulb size, shape, maturity, yield and short-term storage life vary with latitude, weather, soil and handling.
• Seed Storage: Keep pellets cool, dry and away from sunlight. Planting seeds and coating are not for consumption.
• Planting Zones: Day length and local planting calendars are essential for onion selection; hardiness zones alone do not establish suitability.

Grow something beautiful. Grow something delicious. Grow with David's Garden Seeds®.

Thyme-Roasted Ailsa Craig Onion Wedges

Use harvested Ailsa Craig onion bulbs, not the contents of the seed packet. Serves 4 as a side. Prep: 15 minutes. Cook: 35 to 45 minutes.

Ingredients

• 1 1/2 pounds harvested Ailsa Craig onions
• 2 tablespoons olive oil
• 1 teaspoon fresh thyme leaves, or 1/3 teaspoon dried thyme
• 1/2 teaspoon salt, or to taste
• 1/4 teaspoon black pepper
• 1 teaspoon fresh lemon juice, optional

Directions

1. Heat oven to 400°F. Rinse onions, remove papery skins, trim the dry root ends and cut into similar-sized wedges, retaining a little clean base to help hold layers together.
2. Toss wedges with olive oil, thyme, salt and pepper.
3. Arrange in one layer on a rimmed baking sheet, with a cut side against the pan.
4. Roast for 35 to 45 minutes, turning carefully after approximately 20 minutes, until tender with browned edges. Check smaller wedges early.
5. Finish with optional lemon juice, adjust seasoning and serve warm.

Recipe Tips and Storage

Keep wedges similar in size for even cooking. If edges brown before centers soften, cover loosely with foil for part of the cooking time. Refrigerate cooked leftovers in a covered container within 2 hours, or within 1 hour above 90°F. Use within 3 to 4 days and reheat leftovers to 165°F. This is a roasted side dish, not a tested canning recipe.