Onion

Red Colorado Onion: Characteristics

Red Colorado is an onion variety, also sold or known as Condor Red Colorado. It is not a registered variety, so the facts here come from its seller and farm sources. It comes from Allied Botanical (Condor brand).

4 min read Updated October 23, 2026 By the anee.io agriculture team Read it all with Libre + Anee
Onion plants in beds separated by grassy paths on a Philippine farm, the kind of farm where Red Colorado onion is grown
Photo: Zarate123, CC BY SA 4.0, via Wikimedia Commons

If you came here looking for Condor Red Colorado, this is the same onion. The facts below come from its seller and from farm sources, each one listed at the end. Compare it with the others in our onion variety finder, or see every crop variety we list. For the crop itself, read our guide: Land preparation for onion and garlic.

Key facts about Red Colorado onion

From its seller and farm sources
TraitWhat the record shows
Breeder or ownerAllied Botanical (Condor brand)
Also known asCondor Red Colorado
Days to harvest, per the sellerharvest 80 to 85 days after transplanting

How long does it take, and how much does it yield?

Days to harvest, by the seller's count: harvest 80 to 85 days after transplanting. No trial on record checks this figure yet, so treat it as the seller's own and compare with farms near you before you plan a season around it.

Once you know the day count, anee.io dates every task from each lot's own planting day, with the growth stages and weather beside it.

Is it resistant to pests and diseases?

No pest or disease ratings are published for this variety. So treat it as untested, and scout every week.

The pests and diseases that hit onion fields most often: leafminer, onion armyworm, purple blotch of onion, anthracnose, bacterial soft rot. Our pest finder and disease finder help you name what you see.

What its seller and farm sources say

  • Days to harvest: Harvest 80 to 85 days after transplanting.
  • Fruit: Bulb: globe shaped, deep red bulbs of 60 to 80 g with a double skin and a thin neck.
  • Season: Dry season.
  • Where: Lowland.
  • Rated intermediate against leaf miner, twisting, damping off, neck rot, purple blotch and bulb rot.
  • Stores well and holds in the field.

Why farmers know it: sold under the Condor name and in online farm shops as Red Colorado onion seed. These are the seller's own figures, from its own trials. So plant a small area first, and compare it with your usual onion on the same ground.

Where and when to plant Red Colorado onion

Red onion stores longer, while yellow onion yields more. Pick a variety that bulbs in the short days of the Philippine dry season, and plant it after the rains so the bulbs dry well. Before planting, get the field ready with our guide: Pagtatanim ng gulay.

Before you buy seed

  • Buy sealed packs or tagged sacks from an accredited dealer, and check the packing date and germination rate.
  • Ask your municipal agriculturist or nearby farmers how it did in your area last season.
  • Try it on a small area first, beside the variety you usually plant, before you switch the whole farm.
  • Write down the planting day, inputs and harvest, so you can compare varieties on your own ground. anee.io keeps these records for you.
Plan your next onion season

Set the planting day of each lot and anee.io dates every task to harvest, with the weather beside it. Free on the Libre plan.

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Onion varieties like this one

These are the closest matches among the onion varieties we list. So if seed of this one is hard to find, compare these first.

Is Condor Red Colorado the same as Red Colorado?
Yes. Condor Red Colorado is another name for Red Colorado. Seed sellers use both, so ask for either one.
Where can I buy seed of Red Colorado?
Ask an accredited seed dealer in your province, the seller named on this page or your municipal agriculturist. Look for the certified seed tag or a sealed pack before you pay.

See how Red Colorado will do on your farm

With Libre + Anee, see its full record: how it yields, its strengths and weaknesses against pests, diseases and the weather, and whether it fits your farm, your season and your soil.

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