Cabernet Bulb Onion Seeds


This packet sows up to 8 feet.
3.75 out of 5 stars
(4 reviews)
Availability: In Stock
'Cabernet's' globe shape and burgundy skin make it a picturesque addition to your harvest! Enjoy the sweet flavor raw on salads or burgers, or cooked into a jam on toast or cheese. Bred for 2"–3" uniform shape and early harvest, this onion will store for up to 6 months! Recipe for red onion jam inside packet. Intermediate-day onions grow best in latitudes 32–42.
$3.49 250 mg (~50 seeds)

Botanical Name: Allium cepa

Days to Maturity: 100–110 days

Family: Alliaceae

Native: Exists only in cultivation

Hardiness: Biennial grown as an annual

Variety Information: Uniform, 2"–3" round bulbs with dark red rings. 'Cabernet' is an intermediate-day onion with a 4- to 6-month storage life.

Type: Intermediate-day onion (Learn more)

When to Sow Outside: 4 to 6 weeks before your average last frost date, or as soon as soil can be worked; when soil temperature is at least 45°F.

When to Start Inside: RECOMMENDED. 10 to 12 weeks before your average last frost date. Transplant outdoors 4 to 6 weeks before your average last frost date. The earlier the start, the bigger the bulb. Ideal soil temperature is 60°–85°F.

Days to Emerge: 7–15 days

Seed Depth: ¼"

Seed Spacing: A group of 2 seeds every 4"

Row Spacing: 12"–16"

Thinning: When 2" tall, thin to 1 every 4"

Harvesting: When onion tops have fallen over and turned yellow or brown, they are ready for harvest. Harvest in the morning, lifting onions with a garden fork. Dry them in the garden in the sun for 2 to 3 days, lightly covering the bulbs with straw, or the tops of other onions to prevent sunscald. Cure onions for 3 to 7 days in a dry area with good air circulation. Once dry, cut the roots to 1/4", and the greens to 1" to create a seal, preventing decay.

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Cabernet Bulb Onion Seeds Reviews

4 reviews

cabernet bulb onion seeds

1 out of 5 stars Sep 21, 2020
poor germination
Sharon J Rooney from MA
Owner Response: Hi Sharon, We are sorry you had a hard time germinating these seeds. Onions germinated best when the soil temperature is between 60-85 degrees F. You can also find an article in the Learn More tab on this product page that may also be helpful. Rest assured our seeds are tested frequently to ensure germination exceeds both industry standards and our own. A customer service agent will be with you soon to see how we can help.

Most reliable

5 out of 5 stars Nov 24, 2020
This onion has produced beautiful burgundy onions year after year. It has come through no matter how strange the growing season, even when other varieties have failed. Medium sized, perfect.
Rebecca D-S from CO

Excellent red onion

5 out of 5 stars Jan 16, 2022
This is a nice, mild red onion with excellent flavor. It's January and I am still enjoying them, they store very well!
Amy from ID

Cabernet Onions From Seed

4 out of 5 stars Jan 11, 2023
I grew these from seed last year 2022. I'm in growing zone 5. They grew beautifully and were delicious! I put the last one in salad on January 9th. Think I'll grow them again! Beautiful color! Not many seeds in a packet though.
Linda from NH
Owner Response: Hi Linda, We're glad to hear that you enjoyed this variety! We want to make sure that the quality we guarantee is being met. We expect 250 mg (about 50 seeds) per packet. If you believe that this was not the case, please reach out to us at customerservice@botanicalinterests.com. Thank you for taking the time to share your experience!

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