VG26014
Sierra Blanca
Sweet Onion Seeds
Hybrid, 100-109 days
AAS Winner. Sierra Blanca onion, also known as Super Star, is a day-length neutral sweet white onion that grows well in a wide range of climates. Large 4½ in. bulbs are round to slightly flattened and typically weigh 12-16 ounces. Sierra Blanca is an ideal onion for eating raw, with a mild, sweet flavor and a thick, crunchy, juicy texture. Plants are resistant to pink root disease and grow 22 in. tall. Sow in early spring for summer harvest, or fall in mild climates for spring harvest.
Growing Sierra Blanca Onion Seeds
Plant Onion Seeds: Direct sow ½ in. deep, 2-4 seeds per inch, in rows 12-24 in. apart. Kept at 55-75°F., germination is in 7 to 15 days. Sweet Onions: Thin to 2 to 4 in. between plants. Bunching Onions: Thinning is not necessary unless you want an extra large diameter.
Harvest Sweet Onion: When stalks begin to fall over, pull onions out of the ground and sun dry for several days, then store in a cool, dry, dark location.
Harvest Bunching Onion: Bunching onions store very well in the ground, and can be harvested as needed over a long period.
Shipping Information
U.S. Shipping Rates
Free shipping on U.S. orders over $70.00.
Free priority shipping on U.S. orders over $175.00.
Standard U.S. shipping is $7.99.
Priority U.S. shipping is $10.99.
International Shipping Rates
Shipping to Canada is $17.99.
International shipping to all other countries is $19.99.
Satisfaction Guarantee
We guarantee all the seeds we sell for one full year from the date of purchase. If you are unsatisfied with any seeds purchased from Swallowtail Garden Seeds, we will issue a refund. For customers in the U.S., we can send one-time replacements or issue a refund.
