25 Mixed Onion Bulbs – 3 Heirloom Varieties

Enjoy a season-long harvest of color, flavor, and kitchen versatility with our Mixed Onion Bulbs collection. This curated trio includes three distinct heirloom varieties—each selected for texture, flavor, and reliable growth in home gardens. Whether you're planting for fresh salads, cooking staples, or long-term storage, these onion bulbs deliver consistent results with minimal effort.

🧅 What’s Included:

– Yellow Stuttgarter – Globe-shaped with a mild, crisp yellow-white flesh. Excellent for cooking and known for its long storage life.
– Red Karmen – Sweet with a touch of spice, wrapped in vibrant red-purple skin. Ideal for slicing, salads, and fresh use.
– Snowball White – Clean, sharp flavor with a classic white papery skin. A go-to for garnishes, salsas, and chutneys.

These onion sets are faster and easier to grow than seed—just plant and water. They sprout quickly, mature reliably, and adapt to a wide range of growing zones (2–12). With early green tops ready in just a few weeks and full bulbs maturing in under 90 days (spring) or over-wintering for fall harvests, they’re a smart addition to any edible garden.

🌱 Why Grow Mixed Onion Bulbs

• Harvest green onions in as little as 2–4 weeks
  
• Full-sized bulbs in 90 days (spring) or up to 240 days (fall)
  
• Three flavor profiles: mild, sharp, and sweet
  
• Easier and faster than seeds or transplants
  
• Heirloom, open-pollinated, and non-GMO
  
• Suitable for USDA Zones 2–12
  
• Performs in full sun or partial shade

🌿 Growing Tips

1. Plant in early spring as soon as soil is workable, or in fall for overwintering
   
2. Choose full sun and well-drained soil for best results
   
3. Space bulbs 4–6 inches apart in rows 12–18 inches apart
   
4. Water regularly until established, then reduce to avoid rot
   
5. Harvest tops early for green onions or allow full development for bulb storage
   
6. Cure harvested bulbs in a dry, well-ventilated area before storing

❓ Frequently Asked Questions (FAQ)

What’s the difference between these varieties?
Each has a distinct color and flavor. Yellow Stuttgarter is mild and long-storing, Red Karmen is sweet and vibrant, and Snowball White is tangy and crisp.

How soon can I harvest them?
Green onion tops can be cut in 2–4 weeks. Full bulb development takes about 90 days in spring or up to 240 days for fall-planted sets.

Do I need to start these indoors?
No. These are bulbs (not seeds), so they go directly into the garden or raised bed with no indoor prep required.

Can I grow them in containers?
Yes. Use a deep container with good drainage and space bulbs 4–6 inches apart.

Are they organic?
These bulbs are heirloom and non-GMO. While not certified organic, they are open-pollinated and untreated.

What zones do they grow in?
They grow well in Zones 2 through 12 with proper planting timing.