Territorial Seed Company Texas Supersweet 1015Y Onion Plants
Best choice for home gardeners seeking large, sweet, and storable onions.
These massive, mild-mannered onions are the gold standard for home gardeners who want serious yields without the sharp bite. While they thrive best in southern soil, their impressive storage life and open-pollinated reliability make them a rewarding project for anyone willing to time their planting right.
$22.95
Who it's for
- Home cooks preferring mild, sweet onions for fresh salads
- Southern gardeners needing varieties adapted to shorter daylight hours
- Vegetable growers seeking consistent, high-yield spring harvests
Who should skip it
- Busy gardeners wanting low-maintenance, disease-resistant crops
- Gardeners looking for long-term pantry storage solutions
- Northern growers living above the 35th parallel
Performance breakdown
Bulb Size Potential
Capable of producing massive, one-pound onions with proper soil care.
Flavor Profile
Delivers the classic sweet, mild taste prized by home cooks.
Storage Longevity
Outperforms many other grano varieties in shelf life after harvest.
Planting Convenience
Hardened-off bunches arrive ready for immediate placement in the garden.
Regional Versatility
Strictly optimized for short-day southern climates with limited northern flexibility.
Genetic Integrity
Open-pollinated status allows for reliable seed saving season after season.
Key Specs
Type
Short-day onion
Harvest
Late spring to early summer
Planting Time
Fall or early winter (short-day regions)
Maturity
100-115 days from transplant
Soil pH
6.0-7.0
Soil Type
Sandy, Loamy
Water Needs
Medium
Sun Exposure
Full Sun
Plant Life Cycle
Annual
Botanical Name
Allium cepa
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