Mustard

King Mustard (King Mustard F1): Characteristics

King Mustard is an F1 hybrid mustard variety, also sold or known as King Mustard F1 or Known You King Mustard. It is not a registered variety, so the facts here come from its seller and farm sources. It comes from Known You Seed (sold in Philippine farm shops).

3 min read Updated October 23, 2026 By the anee.io agriculture team Read it all with Libre + Anee
A farmer watering vegetable beds in Pulilan, Bulacan, the kind of farm where King Mustard is grown
Photo: JFVelasquez Floro, CC0, via Wikimedia Commons

If you came here looking for King Mustard F1 or Known You King Mustard, this is the same mustard. The facts below come from its seller and from farm sources, each one listed at the end. Compare it with the others in our mustard variety finder, or see every crop variety we list. For the crop itself, read our guide: Pagtatanim ng gulay.

  • Type: F1 hybrid.

Key facts about King Mustard

From its seller and farm sources
TraitWhat the record shows
Breeder or ownerKnown You Seed (sold in Philippine farm shops)
Also known asKing Mustard F1, Known You King Mustard
TypeF1 hybrid

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

No day count or trial yield is published for this variety. So ask the seller or your municipal agriculturist for figures from 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 mustard fields most often: bacterial soft rot, black rot of cabbage, cabbage webworm, clubroot, cutworm. Our pest finder and disease finder help you name what you see.

What its seller and farm sources say

  • Fruit: Leaves: large, thick and tender, green tinged purple, on big plants.

Check these against what farmers near you have seen, because the same variety can do differently from one town to the next.

Where and when to plant King Mustard

Mustasa is quick and easy. Pick a variety by leaf: broad and mild, or curly and sharp. Before planting, get the field ready with our guide: Fertilizer for vegetables.

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 mustard 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.

Start free

Mustard varieties like this one

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

Is King Mustard F1 the same as King Mustard?
Yes. King Mustard F1 is another name for King Mustard. 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 King Mustard?
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 King Mustard 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.