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Non-GMO
Sierra Blanca Hybrid Onion
$4.50
Packet - 200 Seeds
Flat $7.99 shipping
Germination guaranteed
Non-GMO
Not sure when to plant in your area?
Planting dates depend on your local frost dates and growing zone.
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Quick Facts
Days to Maturity105 days
SunlightFull Sun
Spacing12 - 18 Inches
Germination7–14 days
Growing Information
Growing Sierra Blanca Hybrid Onion
'Sierra Blanca’ also known as ‘Super Star,’ is an award-winning hybrid onion and 2001 All-America Selections Winner prized for its exceptional sweetness, large size, and wide adaptability. Glossy white bulbs offer mild, sweet flavor and good keeping quality, making this variety useful both fresh and cooked.
Start ‘Sierra Blanca’ indoors for transplanting or sow directly where conditions allow. Plant seeds about ¼ inch deep and space plants 12 to 18 inches apart. Grow in full sun. This cold-tolerant variety is also well suited to containers.
Ready to harvest in about 105 days, lift bulbs once they have reached full size and maturity and cure them before storage.
Sweet, large, and versatile, ‘Sierra Blanca’ is excellent for fresh slicing, salads, grilling, roasting, everyday cooking, and storage.
- Days to Maturity: 105
- Sow Method: Start Indoors / Direct Sow
- Sow Depth: ¼ Inch
- Spacing: 12 - 18 Inches
- Sun: Full Sun
- Height: 4 - 8 Inches
- Weight: 2 Lbs
- Day-Neutral
Catalog Page: 48
How to start
Start Indoors / Direct Sow
Sowing depth
¼ Inch
Plant height
4 - 8 Inches
Botanical name
Allium cepa
Questions
FAQ
How should I start these seeds?
Recommended sow method: Start Indoors / Direct Sow.
How deep should I sow the seeds?
Sow at a depth of ¼ Inch.
How long until they germinate?
Typical germination: 7–14 days.
How far apart should I space them?
Recommended spacing: 12 - 18 Inches.
How much sun do they need?
Recommended sun exposure: Full Sun.
What’s your germination guarantee?
We stand behind the germination quality of our seed. If you have a germination issue, contact our team and we'll help make it right.
Sierra Blanca Hybrid Onion$4.50 · Packet - 200 Seeds
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