Scarlet Frills Mustard Seed for Microgreens or Garden


Scarlet Frills Mustard microgreens are beautiful and spicy with a bold horseradish-like flavor.
HM Tray seed packet weighs 1.8 grams.
The 1010-tray seed packet weighs 4.5 grams.

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Available Options

Seed for HM Tray$2.49
Seed for 1010 Tray$4.19
By the Ounce$14.99

Scarlet Frills Mustard Seed Highlights

  • Germination: 1 to 3 days
  • Soak: No need.
  • Harvest: 8 to 30 days for microgreens – can allow it to grow into baby greens (up to 25+ days)
  • Flavor: Very spicy, bold mustard flavor.
  • Nutrients: Vitamins A, C, E, K, and antioxidants.

These mustard microgreens can be harvested at an early cotyledon stage or grown as long as possible in a microgreen tray.

The results will differ in shape and color but not spiciness! Scarlet Frills Mustard microgreens are spicy with a bold mustard flavor, even at an early stage.

You can see all of the variation in the frilly true leaves of this microgreen. I couldn’t stop putting photos on the product page. Some are red & white variegated, other are pure dark red, many are streaked. I can’t tell the difference between Scarlet Frills Mustard and Ruby Streaked Mustard.

I think they are close to the same sub-variety but produced by different growers.

This mustard is great to use fresh in spring rolls, sandwiches, stir fry, or dishes where you want some spice.

Harvest these microgreens between days 6 and 30 for a zing on sandwiches or in salads.

The flavor is the same as the microgreens mature, but the texture will change. I prefer to eat them as the first true leaves form. They aren’t nearly up to full color yet, but they’re more tender.

Control the spicy flavor by adjusting how many microgreens you add to your dish.

You can plant Scarlet Frills Mustard Seed in the garden, where these fantastic colored plants become deep red and frilly.

Some photos are of Scarlet Frills Mustard grown in my garden, so you can see what mature Scarlet Frills Mustard looks like as a mature vegetable.

Scarlet Frills Mustard Seed Package Sizes

  • The Home Microgreens tray seed packet weighs 1.8 grams and contains approximately 1,100 seeds.
  • The 1010-tray seed packet weighs 4.5 grams.
  • 1-ounce packets.

How Much Seed Do You Need For Your Tray?

You don’t need to worry about how much seed you need if you use Home Microgreen planting trays or 1010 trays. Each seed packet has the correct number of seeds for a perfect tray of frilly Scarlet Frills Mustard microgreens.

The seeding area of a Home Microgreen Tray is 37.5 square inches.

However, if you’re using a different planting tray, use the calculator in the article below to figure out how much seed you need.

Click this link to use the calculator: Home Microgreens Seed Density Calculator.

In the Garden

This mustard does well in the garden too! It is very spicy. You can see how beautiful the frilly leaves become as they get older. There is a photo of a bunch of this mustard I grew in the garden in the gallery above.

Seeding Density

Seeding Density for Scarlet Frills Mustard Seed

By Weight

Home Microgreens Tray: 1.8 grams

1010 Tray: 4.5 grams

1020 Tray: 9.6 grams

By Measuring Spoon

Home Microgreens Tray: 0.5 teaspoons

1010 Tray: 1.4 teaspoons

1020 Tray: 2.8 teaspoons

All volumetric measurements are level, not heaping spoons.

I use these vertical-sided measuring spoons because the seeds are easier to level with the straight sides.

These are my recommended seeding densities to produce a great-looking Scarlet Frills Mustard microgreens tray.

I like to allow microgreen leaves to develop to a larger size as they provide more nutrition & flavor than producing smaller leaves and stems.

Microgreen density depends on many environmental factors and seed germination percentages.

You may prefer to modify the seeding density, but my seeding densities are a great starting point if nothing else.

Check out the Home Microgreens Seed Density Course if you have a different size tray.


28.35 grams equals 1 ounce.

Three teaspoons equal 1 Tablespoon

Four Tablespoons equal 1/4 cup

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