Onion Sets - Red Karmen
Best choice for home gardeners wanting reliable, vibrant red onions.
Get a head start on your harvest with Red Karmen Onion Sets. This late-season, long-day variety produces beautiful bulbs with brilliant red skin, perfect for any home garden. Easy to grow, these onions yield bulbs typically measuring 2 to 3 inches. For optimal results, ensure they receive full sun and are planted in well-drained, slightly acidic, fertile soil. Harvest is generally ready in late summer when the tops naturally fall over. These sets offer a reliable way to enjoy fresh onions throughout the season.
$11.25
Owner Satisfaction
4.6
/ 5
Category Rank
726
/ 3183
#726 in Plant & Flower Bulbs
Price vs Category Average
-52%
Below average
Plant Type
Annual
/ Annual
Who it's for
- Home gardeners seeking a faster harvest
- Culinary enthusiasts prioritizing fresh, mild flavor
- Pantry planners needing long-term storage
Who should skip it
- Budget-conscious growers planting on a large scale
- Gardeners in regions with unpredictable spring frosts
- Competitive growers aiming for record-breaking bulb size
Performance breakdown
Ease of cultivation
Sets provide a significantly higher success rate than starting from seed.
Yield consistency
Reliable bulb development ensures a predictable harvest for home gardeners.
Culinary versatility
The vibrant red flesh adds excellent color and flavor to dishes.
Growth cycle efficiency
Late-season timing allows for a productive, staggered harvest window.
Storage potential
Solid bulb structure offers decent longevity when cured and stored properly.
Garden adaptability
Thrives in standard home garden conditions with minimal soil amendments.
Key Specs
Plant Type
Annual
Size available
25 each
Sun Exposure Requirement
Full Sun
Soil Preference
Well-drained, slightly acidic, fertile soil
Model Number
12801NON-25EA
Plant Life Cycle
Annual
Special Use
Edible
Bloom Season
Late Summer
Features
- Vibrant red skin color
- Late-season long day variety
- Yields 2-3 inch bulbs
- Ideal for cooking
- Easy to grow
- Provides an early harvest
- Suitable for home gardens
What customers say
Customers overwhelmingly praise the Red Karmen onion sets for their exceptional quality and reliable performance. Reviewers consistently report high viability and a strong sprouting rate, leading to successful harvests. The resulting onions are celebrated for their vibrant red color and excellent, pleasantly mild sweet flavor, making them perfect for fresh eating. A key highlight is the superior storage capability, allowing the harvest to last well into the winter. Gardeners appreciate the uniformity of the mature bulbs, confirming the high quality of the sets provided. These factors combine to deliver significant value and high satisfaction, earning strong recommendations for future planting.
Know before you buy
Long-day onions are specifically bred to begin forming bulbs when daylight reaches 14 to 16 hours. They perform best in northern regions where summer days are longer, making them ideal for gardeners in those climates.
Plant the sets with the pointed end facing up, burying them about 1 to 2 inches deep. Ensure the soil is loose and well-drained to allow the bulbs enough room to expand as they grow.
The onions are ready for harvest in late summer once the green tops begin to yellow and naturally fall over. At this stage, the bulbs have reached their full size and are ready to be pulled from the soil.
Yes, Red Karmen onions can be grown in containers as long as the pot is at least 8 to 10 inches deep and has adequate drainage holes. Ensure the container is placed in a location that receives full, direct sunlight throughout the day.
Onions thrive in fertile, well-drained soil with a slightly acidic pH. Before planting, mix in organic matter like compost to improve soil structure and nutrient content, which helps support the development of 2 to 3-inch bulbs.
Still have a question?
Ask Hayley anything about this product before you decide.