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Patterson Onion (F1 Hybrid ,104 days)


Long day

This is a replacement for the variety Copra which many gardeners loved and grew year after year but it is no longer available for us to offer.  Patterson hits the same marks of a great onion like Copra, except it is a bit larger and more uniform with copper colored skin and the same ability to store extremely well.    

150 seeds



Germination: 5-10 days

Germination Temperature: Optimum soil temperatures 65-85 degrees F. Cooler soil temperatures increase germination time.

Seed Sowing Depth: ¼” deep

Outside Sowing: Early to mid-spring when soil temperature reaches at least 55 degrees F. Sow 1-3 seeds per inch, thin to 2-6” apart. The larger the bulb size the more space.

Starting Indoors:  8-10 weeks before last frost. Sow in flats/cells/pots ¼ ” deep, ¼-½ ”  apart. Provide 65-75 degrees F soil temperatures. Transplant seedlings out mid/late spring, 2-6” apart. Fertilize the seedlings every 7-10 days with a liquid or water soluble fertilizer (diluted to ¼ of suggested measurement).

How much does a packet plant: 15-20 foot single row  

Harvest: Stop watering a week before harvesting. Pull out when tops fall over and skin develops. Cure them by drying them until the neck is dry, out of direct sunlight, in a warm area, and in single layer so air can circulate around them.

Tips: Plant into fertile soil with lots of organic matter and adequate water, 1” per week for optimum growth.

Customer Reviews

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  • onions
  • germination
  • Some
  • firm
  • harvest
  • surprise
  • Pattersons
  • Copra
  • keeper
  • game
Marie J.
United States
I recommend this product

Patterson onions

Excellent germination. Great keeper. I still have some from last year’s harvest!

Joyce G.
United States
I recommend this product

Patterson onions

I planted them last year and am still using the last few now. They have kept very well and are nice and firm yet. I had no problem getting them to germinate or grow nice onions. I bought they again to plant this year. I will be starting them this afternoon.


Don't be afraid

I was very apprehensive. I planted Copra onions for years. I found the Pattersons to be bigger and to my surprise, sweeter and just generally better onions. We'll see how they keep over the winter. If they will keep like a Copra, it's game on.

Sherillee B.
United States

Patterson Onion

very weak plants. In all my years of starting onions under lights inhouse, I've never had such an issue.

Joyce G.
United States

They are planted and under

They are planted and under lights in the basement. They came up very well and are growing nicely.