Organic Yellow Onion Seeds
Organic Yellow Onion Seeds
Details
Add some flavor to your garden with our Organic Yellow Onion Seeds! These seeds are organic, non-GMO, and heirloom — so you can grow the highest quality harvest right at home.
Instructions:
We recommend using the following to sow the seeds:
- 12 Cavity Mini Greenhouse or Planter with Humidity Dome
- Soil Pods
- Liquid Fertilizer
These prefer full sun but can grow by a bright windowsill or under powerful grow lights, though more slowly and with a smaller harvest. You can harvest the green stems in 90–100 days; the 3"–6" bulbs mature in 90–120 days and prefer cooler temperatures. Plant in fall to overwinter and harvest in spring, or plant in spring to harvest in late summer.
These seeds are for the 2026 growing season.
About the Seeds:
| Difficulty | Beginner |
| Germination Time | 4–10 days |
| Depth | 1/2" |
| Spacing | 4"–6" apart, or 1–2 seeds per soil pod or nursery pot |
| Recommended Planter | 6"–12" planter or garden bed |
| Time to Maturity | 90–120 days |
| Seed Prep | None required |
| Method | Greenhouse or paper towel method |
| Temperature | 55°F – 75°F |
About the Plant:
| Description | Large bulbs with long green onion stems |
| Difficulty | Beginner |
| Growth Speed | Medium |
| Size of Plant | 12"–18" tall with 3"–6" bulbs |
| Light | Full sun or grow lights |
| Soil | Sandy coconut coir/peat-based potting mix, pH 6.0–7.0 |
| Temperature | Cool preferred |
| Pet-Friendly | No — not safe for pets |
| Pests | Thrips, aphids, fungal blight |
| Fertilization | Moderate |
Materials + Care
We prioritize quality in selecting the materials for our items, choosing premium fabrics and finishings that ensure durability, comfort, and timeless appeal.
Shipping + Returns
We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.