They’re also tolerant to mild frost and drought.

Keep in mind that all types of onions are toxic to animals.

you might plant bulbs once the soil is ready and consistently reaches at least 50 degrees Fahrenheit.

Sweet Onions

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Selecting a Planting Site

Choose a site in full sun with well-drained, rich organic soil.

Leave 16 or more inches between rows.

If planting seeds, seedlings should appear in 10 to 14 days.

Onion bulbs in garden

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Plant 1/2 an inch deep for seeds or 2 to 3 inches deep for sets.

Plant in beds or containers that receive substantial periods of light during many months.

Soil

Onions need higher fertility levels in their soil than many other vegetables.

Onions grow best in well-drained and lightly acidic soil.

If you haven’t had rain, water your onions approximately once weekly.

Candy Onion vs. Sweet Onion

Onions come in varying shades of sweetness.

Harvesting Candy Onions

Candy onions areready to harvestabout 90 to 100 days after planting.

To cure them outdoors, temperatures should be between 65 and 85 degrees Fahrenheit.

They should stored for up to three months.

Most gardeners will probably opt to plant bulbs or scraps for candy onions, rather than seeds.

These onions do better if they are transplanted and not direct seeded.

Once spring comes they’ll begin growing again and can be full size by May.

Candy onions are more resistant to diseases that afflict common onions.

However, keep an eye out for botrytis, downy mildew, and purple blotch.

All of these diseases create lesions and will eventually kill the plant.

To avoid diseases, follow standard gardening practices.

Use and carefully apply only the directed amounts of nitrogen fertilizers.

A candy onion is a hybrid that combines the best of a common onion and a sweet onion.

Allium spp Toxicosis in Animals.Merck Veterinary Manual.