Yellow Sweet Spanish Onion Seeds.

Yellow Sweet Spanish Onion Seeds Non-GMO Heirloom. 400 Seeds Yellow Sweet Spanish Onion Seeds Growing Guide Yellow Sweet Spanish onions are a popular variety of onion that is known for its mild, sweet flavor and large size. They are relatively easy to grow, making them a good choice for beginner gardeners. To grow Yellow Sweet Spanish onions from seed, follow these steps: Start the seeds indoors 6-8 weeks before the last frost date in your area. Sow the seeds 1/4 inch deep in a seed tray or pot filled with seed starting mix. Keep the soil moist and warm (65-75 degrees Fahrenheit). The seeds should germinate within 7-14 days. Transplant the seedlings outdoors after the last frost date. Harden off the seedlings by gradually exposing them to outdoor conditions for a week or two before transplanting. Space the seedlings 12-18 inches apart in rows 18-24 inches apart. Water the onions regularly, especially during hot weather. They need about 1 inch of water per week. Fertilize the onions