Corn

Sierra F1 Corn (Sierra): Characteristics

Sierra F1 corn is a sweet corn hybrid variety, also sold or known as Sierra or Sierra sweet corn. It is not a registered variety, so the facts here come from its seller and farm sources. It comes from Allied Botanical Corporation (Condor Quality Seeds brand).

4 min read Updated October 23, 2026 By the anee.io agriculture team Read it all with Libre + Anee
A cornfield on a hillside in Pilar, Capiz, its leaves drying close to harvest, the kind of farm where Sierra F1 corn is grown
Photo: Rochelle Vergara, CC BY SA 4.0, via Wikimedia Commons

The average and top yields in tonnes per hectare come from the trials each variety went through to be registered with the NSIC, and from what the seed companies say about their own seed.

What farmers harvest today can be different. Newer harvest records, the season, the place, the soil, the water and the care all move these numbers over time.

So use them to compare varieties, not as a promise for your field. Ask your seller or your agriculturist how the variety did on farms near you in the last few seasons.

If you came here looking for Sierra or Sierra sweet corn, this is the same corn. The facts below come from its seller and from farm sources, each one listed at the end. Compare it with the others in our corn variety finder, or see every crop variety we list. For the crop itself, read our guide: Pagtatanim ng mais, step by step.

  • Type: Sweet corn hybrid.

Key facts about Sierra F1 corn

From its seller and farm sources
TraitWhat the record shows
Breeder or ownerAllied Botanical Corporation (Condor Quality Seeds brand)
Also known asSierra, Sierra sweet corn
TypeSweet corn hybrid
Days to harvest, per the seller70 to 73 days after sowing
Yield, per the seller10 to 15 t/ha of husked ears (company figure)

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

Days to harvest, by the seller's count: 70 to 73 days after sowing. Yield, by the seller's count: 10 to 15 t/ha of husked ears (company figure). No trial on record checks these figures yet, so treat them 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 corn fields most often: Asian corn borer, banded leaf and sheath blight, Corn downy mildew, Corn ear rot, Corn earworm. Our pest finder and disease finder help you name what you see.

What its seller and farm sources say

  • Days to harvest: 70 to 73 days after sowing.
  • Yield: 10 to 15 t/ha of husked ears (company figure).
  • Season: All year.
  • Ears about 439 g in the husk and 273 g husked.
  • Ears 20.6 cm long and 5 cm across.
  • Sweetness of 12.8 Brix.
  • Plants about 2 m tall with the ear set low, about 66 cm up.
  • Thick green husks that keep the ears fresh and sweet longer.

Why farmers know it: a new sweet corn hybrid in Allied Botanical's line, bred for traders with thick green husks. These are the seller's own figures, from its own trials. So plant a small area first, and compare it with your usual corn on the same ground.

Where and when to plant Sierra F1 corn

Start with the color your buyer pays for: yellow corn goes to feed mills, while white and glutinous corn go to the table. Next, pick between a hybrid, which yields more but needs new seed every season, and an open pollinated variety, whose seed you can save. Then match the island group in its recommendation, because trials in Luzon and Mindanao give different winners. Before planting, get the field ready with our guide: Land preparation for corn.

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 corn 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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Corn varieties like this one

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

Is Sierra the same as Sierra F1?
Yes. Sierra is another name for Sierra F1. Seed sellers use both, so ask for either one.
Can I save its seed?
No. It is a hybrid, so seed saved from it does not grow true and yields less. Buy new seed each season.
Where can I buy seed of Sierra F1?
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 Sierra F1 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.

The account is free, no credit card.