| Common Name | Onion Seed |
|---|---|
| Family | Amaryllidaceae |
| Flavor Profile | Tender & Crisp Texture |
| Fruit Size | 3" diameter |
| Growing Conditions | Outdoor |
| Growth Habit | Non-Branching |
| Harvest Advantages | Fresh Eating, Storage |
| Life Cycle | Annual |
| Plant Attributes | Edible, Root Vegetable |
| Plant Height | 14" - 16" |
| Planting Season | Spring |
| Seed Type | Heirloom, Open-Pollinated |
| Use | Culinary |
| Germination Days | 10-15 days |
| Germination Lighting | No |
| Germination Info | Cover Seeds |
| Soil Temperature | 75° |
Yellow Sweet Spanish
Onion Seed
(Long Day) Leading variety for the production of large yellow bulbs. A good keeper onion.
| Days to Maturity | 110 days |
|---|---|
| Hardiness Zones | 3, 4, 5, 6, 7, 8, 9 |
| Light Requirement | Full Sun |
| Plant Spacing | 4" - 5" |
| Planting Depth | 1/4” |
| Row Spacing | 12" - 18" |
| Sowing Method | Start Indoors |
| Water Needs | Average |
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This handy chart provides indoor and outdoor seeding dates for popular garden vegetables. It includes local spring and fall frost dates for the U.S. and Canada, with a sliding frost line for easy reference. Details cover seed quantities, planting depths, row and plant spacing, plus sunlight needs, minimum soil temperatures, and expected yields. A companion planting guide is also featured, making it an essential for gardeners and homesteaders alike.









Kara Smith (verified owner) –
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Brian –
Had great germination indoors, however I transplanted too early and got caught in a heat wave. Think I still have a bunch of seeds. Some managed to survive and are racing to catch up to the onion sets that were also planted.