White Sweet Spanish Onion Heirloom Seeds Non-GMO. Sweet Spanish White onions are long-day onions that are large, sweet, and mild with good storage quality. Mild-tasting and easy to peel, make them a favorite with cooks. This heirloom variety is excellent for cooking because they are large, sweet, and can be stored for a moderate amount of time. White Spanish Onion is more suited for northern gardens. Spanish onions contain sulfur compounds.
Pkt Size/Approx. Seeds
0.9 g ~200+ Seeds
•(Allium cepa)
•Heirloom
•Annual Crop
•GMO-Free
•Open-Pollinated
•USA-grown Seeds
•Square Foot Garden Spacing 16
•USDA Zones: All Zones in the U.S.A
Because sweet white Spanish onions take a few months to mature from seed, gardeners with a short growing season will need to start the seeds inside. 2-3 months before the last frost date; Plant the seeds 1/2" deep in a flat, keep them at room temperature and moist . When the tops fall over, trim to 3" or 4" to focus the growing on the roots. Four weeks before the last frost or when the garden soil reaches 55 F, transplant the seedlings 4" to 6" apart in rows . To direct sow, sow three seeds per inch 1/2" deep in full sun, and light, rich soil. Thin the seedlings 2-6" apart. Thinned onions can be used for fresh eating or transplanted. Plant onions with cabbage family members, lettuce, or tomatoes; avoid planting onions with peas or beans. Long-day onions may be grown as a winter or fall crop in areas with warmer winters.