Yellow Sweet Spanish - Onion Seeds

SKU: VON107

Open-Pollinated

Heirloom

$3.95

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Packet 200 seeds

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Yellow Sweet Spanish bulks up into softball‑size bulbs with mild, juicy flesh that caramelizes like a dream. This long‑day heirloom has been a market staple for over a century. Slice raw on burgers, roast wedges alongside roots, or cook low and slow for French onion soup. Onions bring prebiotic fiber and quercetin; this one brings sweetness without the bite. Start indoors early, transplant deep, and water consistently for big bulbs. Cure well and use through fall—these aren’t long keepers, so enjoy them fresh and sweet.

How to Grow

Start seed indoors 6-8 weeks before transplanting into the garden. Optimum soil temperature for seed germination is 65-80 degrees. Transplant to the garden about 2-4 weeks before your average last frost. If seedlings begin to tip over, trim tops to 3". Green onions can be direct sown in the garden from early spring to mid-summer. The length of summer days provides a trigger for onions to grow bulbs. There are onions that bulb best where summer days are short (low latitudes), intermediate (medium latitudes), or long (high latitudes).

Growing Specs

Scientific name: allium cepa
Days to maturity: 110-130 from transplant
Seed depth: 1/4-1/2"
Days to sprout: 7-12
Plant spacing: 4-6"
Row spacing: 12-18"
Light requirements: sunny
Plant height: 6-12"
Life cycle: biennial
Frost hardy: yes

NON-GMO

Open-pollinated seeds perfect for seed saving

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Third-party lab tested to ensure strong germination and seed vitality

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Created with love in Pottstown, PA

ORGANIC SEED

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Excellent germination!

Of 72 cells, each with 2 seeds, 70 cells germinated!

Growing Strong

So far so good! We haven’t harvested yet … we may have started them a little late but the greens are large and smell great

Thank you for your feedback, Janna! We're excited to hear that your Yellow Sweet Spanish Onion seeds are thriving, despite a slightly delayed start. It sounds like your garden is off to a fantastic start with those impressive, aromatic greens.