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Copra Onion

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A favorite for storing. Keeps well for about 10 months, providing onions for cooking until planting time rolls around again. Exceptionally sweet with a bold onion flavor. Round, medium-sized onions have a dark yellow skin and thin necks. Matures in 110 days. Hybrid. Long-day onion.


Fruit Color Yellow
Fruit Size Medium
Pollination Self-pollinating
Ripens/Harvest Matures In 110 Days
Shade/Sun Full Sun
Soil Composition Loamy
Soil Moisture Well Drained
Soil pH Level 6.2 - 6.8
Taste Sweet And Juicy
Texture Firm, Crisp
Years to Bear 1
Zone Range 3 - 9

Zone Compatibility

This Variety's Zone Range 3 - 9
My Hardiness Zone ?
The USDA hardiness zones offer a guide to varieties that will grow well in certain climates. Each zone corresponds to the minimum winter temperatures experienced in a given area. Make sure that your hardiness zone lies within the zone compatability range of this variety before ordering.

Recommended Pollinators

This variety is self pollinating.

In many cases, you may still want to plant pollinating partners to increase the size of your crops, but with self-pollinating varieties doing so is optional. You'll get fruit with only one plant!

Tools & Supplies

Having the proper tools and supplies when growing your own can make the difference between a good harvest and a great harvest! Here's a list that our experts recommend for this variety.

Planting & Care

Learn all about how to grow onion plants in The Growing Guide. An entire section of our website dedicated to your growing success.

Shipping Information

Estimated Delivery Date

You don't pay until it ships.

We work hard to make sure that your order arrives at the ideal time for planting in your location. That's why we only ship living products during certain times of the year. Order now and your credit card won't be charged until your climate is suitable for planting success and your order is shipped.

Our Promise of Satisfaction

1 Year Warranty

Every order comes with our promise of satisfaction. If you aren't completely satisfied with your order, let us know within one year for a free one-time replacement or refund.


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Questions & Answers

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Browse 3 questions Browse 3 questions and 9 answers
Why did you choose this?
Stark Bro's Store
Generally a good keeper and grows pretty uniform
Robert P on Mar 14, 2017
Generally a good keeper and grows pretty uniform
Robert P on Mar 14, 2017
Great for storage
MARTHA C on Apr 27, 2016
Great for storage
MARTHA C on Apr 27, 2016
Is this like a scallion?
jimbo on Apr 19, 2016
BEST ANSWER: These should grow larger than scallions if they are in soft, well-fertilized soil. Do you have heavy clay? That could be an issue.

Customer Reviews

4.7 / 5.0
3 Reviews
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Best Onions
Copra onions are the best onions for storing. They have great flavor! Store them in a cool place and use them for months.
May 9, 2019
1 year ago
These are great onions overall
These are great keepers. Good large size and full bodied flavor as well. We always have enough left in storage to last until new crop is ready
May 16, 2018
over 2 years ago
cobra onion plant
Received them late in season, was told was a with the grower, when I received was SATISFIED.they produce well
August 6, 2016
over 4 years ago