Steps:
- Onion Red seeds Selecting Seeds:
- Choose onion seeds from a reputable source. There are various onion varieties, including red, white, and yellow onions.
- Onion Red seeds Seed Starting Mix:
- Fill seed trays or small pots with a well-draining seed starting mix or a mixture of potting soil and perlite. Onions prefer loose, well-draining soil.
- Planting Seeds:
- Sow onion seeds thinly on the surface of the soil. Press them gently into the soil, and cover them lightly with a fine layer of soil. Water the soil after planting.
- Covering Seeds:
- Cover the seed trays or pots with plastic wrap or a humidity dome to create a warm and humid environment for germination. This helps retain moisture and encourages seed germination.
- Germination:
- Place the seed trays or pots in a warm location. Onion seeds typically germinate in 7-14 days. Once germination occurs, remove the plastic cover.
- Lighting:
- Move the seedlings to a location with bright, direct light. If using artificial light, provide 12-16 hours of light per day. If using natural light, place them in a sunny windowsill.
- Watering:
- Keep the soil consistently moist but not waterlogged. Water the seedlings from the bottom to prevent damping off. Use a watering can or spray bottle.
- Thinning:
- Once the onion seedlings have grown a few inches tall, thin them by removing weaker seedlings, leaving the strongest ones spaced about 2-3 inches apart.
- Transplanting:
- When the onion seedlings are about 6-8 inches tall and have a few sets of leaves, transplant them into larger pots or directly into the garden. Space them according to the recommended distance for the specific onion variety.
- Outdoor Transplanting:
- Transplant onion seedlings outdoors after the last frost has passed. Choose a location with full sun and well-draining soil.
- Caring for Outdoor Plants:
- Water the onion plants regularly, providing about 1 inch of water per week. Onions are generally not heavy feeders, but you can side-dress with a balanced fertilizer if needed.
- Harvesting:
- Onions can be harvested when the tops have fallen over and started to dry. Lift the bulbs from the soil, allow them to cure for a few days in a dry, airy location, and then store them in a cool, dry place.
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