Vidalia Onion
Vidalia Onion is a hybrid allium. Germination takes 7-10 days and fruit ripens from about day 110-120. Skin runs to golden yellow skin with white flesh. Water need is 1 inch per week, consistent moisture especially during bulb formation. Suits zones 5-10. It will crop in a container. As a hybrid it will not breed true; saving seed from it is not worth the space.
Sowing
Start from transplants or sets in early spring, 4-6 weeks before last frost. Plant when soil temperature reaches 50°F.
Cultivation
- Sun
- Full sun (6+ hours)
- Water
- 1 inch per week, consistent moisture especially during bulb formation
- Soil
- Well-drained, fertile soil with high organic matter content
- Soil pH
- 6.0-6.8
- Spacing
- 4-6 inches
- Height
- 12-18 inches
- Season
- Cool season
Appearance & flavour
- Colour
- Golden yellow skin with white flesh
- Size
- 3-4 inches diameter, 8-12 oz
- Shape
- Globe-shaped, slightly flattened
- Flavour
- Very sweet and mild with low pungency, crisp texture
In the kitchen
Excellent raw in salads, sandwiches, salsas. Perfect for caramelizing, grilling, and roasting. Short storage life.
Pests, disease & resistance
- Pests
- Onion thrips, onion maggots, wireworms
- Diseases
- Downy mildew, purple blotch, neck rot, pink root
- Resistance
- Moderate resistance to pink root and fusarium basal rot
Planting calendar by USDA zone
| Zone | Start indoors | Transplant | Direct sow | Harvest |
|---|---|---|---|---|
| 1 | — | — | June – July | September |
| 2 | — | — | May – July | September |
| 3 | — | — | May – June | August – October |
| 4 | — | — | April – June | August – October |
| 5 | — | — | April – May | August – November |
| 6 | — | — | April – May | July – November |
| 7 | — | — | March – May | July – November |
| 8 | — | — | March – April | June – December |
| 9 | — | — | February – March | May – December |
| 10 | — | — | January – March | May – December |
| 11 | — | — | January – February | April – December |
| 12 | — | — | January – February | April – December |
| 13 | — | — | January – February | April – December |
Companion planting
8 beneficial pairings indexed for this variety, 3 to avoid.
Avoid
Nutrition (per 100 g)
- Calories (per 100 g)
- 40
- Protein (g)
- 1.1
- Fat (g)
- 0.1
- Carbohydrate (g)
- 9.34
- Fibre (g)
- 1.7
- Sugars (g)
- 4.24
- Vitamin A (µg)
- 0
- Vitamin C (mg)
- 7.4
- Vitamin E (mg)
- 0.02
- Vitamin K (µg)
- 0.4
- Vitamin B6 (mg)
- 0.12
- Folate (µg)
- 19
- Calcium (mg)
- 23
- Iron (mg)
- 0.21
- Magnesium (mg)
- 10
- Phosphorus (mg)
- 29
- Potassium (mg)
- 146
- Zinc (mg)
- 0.17
- Selenium (µg)
- 0.5
Where to buy seed and equipment
Some links are affiliate links. If you buy through them we may earn a commission at no extra cost to you.
Cultivar facts compiled from public horticultural references including USDA GRIN and NC State Extension. Descriptions are original to this catalogue.
Grown Vidalia Onion?
Post a crop report — day counts, reservoir readings, what worked. Variety-specific logs are the most useful thing on the forum.
Similar varieties
Other alliums with a comparable time to harvest, so a season that suits Vidalia Onion suits these too.
- Yellow Granex Onion 110 days
- Ailsa Craig Sweet Onion 110 days
- Conservor 110 days
- Stuttgart 110 days
- Red Wing Storage Onion 110 days
- Yellow Sweet Spanish Onion 110 days