How to Grow Vibrant Magenta Sunset Swiss Chard Microgreens

Magenta Sunset Swiss Chard has been on my “Want to Grow” list for some time. As microgreens and in the garden, Swiss Chard is one of my favorite greens to grow and eat.

At first, I was looking for Peppermint Swiss Chard but could never find a supplier for the seed volume I wanted to buy.

Then I came across Magenta Sunset Swiss Chard. I like it better because the stems are a solid rose-magenta color from ground to leaf instead of transitioning to white like Peppermint Swiss Chard.

More seed, better price, and more vibrant colors equal a win! 

swiss chard microgreens

How to Grow Magenta Sunset Swiss Chard Microgreens

We will show you how we grow Magenta Sunset Swiss Chard and all chards and beets, their close relatives.

Let’s Start with the Seeds

Swiss Chard and beets have seeds that look like crowns. You can see the shape and the amount of seed we use when planting in the Home Microgreens trays. For example, below are 6.5 grams of Magenta Sunset Swiss Chard seeds.

magenta sunset swiss chard microgreen seeds

The size of Swiss Chard seeds varies by cultivar. Magenta Sunset is in the middle range. You can see other Swiss Chard seed size examples in the photos here

We also did a podcast on growing Swiss Chard and other seeds like them. 

home microgreens sells seeds

FREE Home Microgreens Grow course that teaches you the basics of growing microgreens in your home! There are 12 video lessons (over 120 minutes), downloads, and more written information and tips!

The Microgreens Podcast

How to Sow Swiss Chard Seeds

It is best to use soil (potting mix) when sowing Swiss Chard and any beet varieties. 

I’ve also planted peas with the method explained below, as it keeps the seeds at an even moisture level.

However, we use the method for Swiss Chard seeds because it removes the seed husk from the young seedling 99+% of the time.

If you’ve ever bitten into a Swiss Chard or beet husk, you know why this is essential.

Swiss Chard husks are hard!

growing beet microgreen seeds

A nasty seed hull or husk.

The Bury Method of Planting Microgreens

The buried method covers the seeds with a layer of potting mix. This method’s advantages are keeping larger or tougher-shelled seeds at even moisture levels. 

It doesn’t allow the seeds to dry out.

Large seeds like peas or those in a dry husk, Like chard, beets, and cilantro, tend to dry out because they absorb water from the soil media.

Because of their size, they can allow air around them to circulate (poor soil-to-seed contact), removing moisture. Burying the seeds stops this effect.

The soil also imparts a lot of drag on the seed husk as the seedling emerges from the soil. In effect, pulling the husk off the cotyledons.

Planting Magenta Sunrise Swiss Chard Seeds

Don’t fill the tray to the top with soil when using the burying method. Instead, leave the soil level a good 1/4- to 3/8-inch below the top of the planting tray.

plantign swiss chard microgreens

The Home Microgreens Tray (above) has a lip 3/16-inch down from the top. Keep the soil level in the tray lower, so the top of the seeds are level with this lip when you plant Swiss Chard and beet seeds.

Before spreading the seeds, tamp the surface of the soil level and pre-wet the surface—no need to wet the whole soil profile.

The seeds don’t need water that deep. So a saturated soil profile can only cause problems at this stage.

Spread the seeds evenly as possible and mist the seeds to wet the husk.

We used 6.5 grams of Magenta Sunrise Swiss Chard seeds, a round tablespoon worth. 

The Burying Part of the Method

Once the seeds have been misted, it’s time to bury them.

We have recommended in all of our articles and videos, including this instructional article, using some containers under the planting tray to catch extra soil. 

You will not spill a speck of soil if you use a container – soil is not messy with this one simple precaution.

Sprinkle soil on top of the seeds to the top of the planting tray. Gently compress the soil. Potting mix will not compact too densely; the purpose is to keep it from moving out of the tray.

burying swiss chard seeds with soil

Next, mist the soil surface and wet the soil on top of the seeds. Not to the point where water drips out the bottom. We only want to wet the soil we placed on the seeds. 

wet the soil placed on top of the swiss chard seeds

Place the Tray into Blackout

Even though we covered the seeds, the tray should go into a weighted blackout period

The cover will retain soil moisture. The weight will not only force better root development but will also help remove the seed husks as the plants force themselves upward.

magenta sunrise swiss chard in blackout period

If you have more than one tray, it’s perfectly fine to stack them. Most microgreens can take the weight. 

We have 2-1/2 pounds on these trays, but we have put up to 5 pounds on them. The microgreens can handle the weight, and so can the trays.

The tea towel we place over the trays is not shown completing the blackout.

The tray on the left has a dark coroplast over the seeds. We are experimenting with these tighter-fitting covers. Later in the article, you’ll see why we like the opaque lids.

Not 48 hours, But 168 hours in Blackout

That’s right; we kept the Magenta Sunrise Swiss Chard in blackout for 7-days.

We did check them on day 5. After that, they started to push their way through the soil.

magenta sunrise swiss chard 5 days after planting

After 7 days, you can see more growth and why we like to use the opaque lids as covers. You can see the microgreens through the lid, and if they aren’t ready, you can leave them alone and not disturb the fragile seedlings.

swiss chard microgreens 7-days after planting
swiss chard microgreens ready for the light

In the photos above (click any image to expand it for better viewing), the Magenta Sunrise Swiss Chard microgreens are seven days old. 

Notice how you can see the microgreens through the opaque lid. 

When your Swiss Chard microgreens reach this growth stage, they are ready to be placed under light.

Time for Water

Now is the time to water. 

We do not want to water microgreens over the top. Instead, the planting tray (the soil) is placed in a secondary solid tray. We like the Home Microgreens tray system because of the tight-fitting watering tray.

Add 1/4- to 3/8 inches of water into the watering tray. Tap water works.

Slowly lower the planting tray into the watering tray. It will float; that is fine.

As the planting tray settles into the water, it will force water into the soil media. The best part about the tight watering/planting tray combo is that it’s almost impossible to overwater this way. 

Water will be forced out the top of the watering tray if it can’t take anymore.

growing radish microgreens watering

Above is an example of us using a clear tray so you can see the water. We add about 1/4 inch of water to the tray.

The tray with the soil shown in the back will be placed into the watering tray, and the water will be forced and wicked up into the planting tray.

Watering Is Very Important with Swiss Chard

It is very easy to overwater Swiss Chard microgreens. 

Keep Swiss Chard too wet, and it will die of the damping-off disease. The worst part about the damping-off disease is that the plants look like they need water, even though too much water has already killed them.

For this reason, the Home Microgreens trays are excellent for Swiss Chard and beet microgreens. 

How Do You Know When to Water Swiss Chard Microgreens?

Remember how the tray feels in your hands when you take the tray out of the blackout. At this point, the tray needs water. 

So when it feels this light again, it’s time to water.

We don’t consider Swiss Chard, or Beets for that matter, as beginner microgreens. Instead, try broccolikohlrabi, or radishes first and gain some experience before trying Swiss Chard.

We know the beautiful colors of Swiss Chard and Bull’s Blood Beets are tempting. But after a few grows, you will be better prepared for the challenges of chard and beets.

Patience wins the game.

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Putting the Swiss Chard Under Lights

We’ve found that intense light is better for Swiss Chard. It’s not that the plants won’t grow under indirect or low intensely light. Instead, they grow very leggy, and stems tend to grow curled.

We learned this in the spring when our garden sets were growing. The trays that received less light were taller but grew crooked and tangled with each other. 

Those under stronger light grew shorter but much straighter.

We placed the Swiss Chard microgreens under Barrina’s 24-watt grow lights. The shelf had two light bars, and the microgreens were about 5- to 6-inches below the lights.

one day under the lights for swiss chard

We don’t have a good photo of the lights, but you can see them under the tray. Even though the Barrina lights are white or natural to the eye, photographs taken under them are purplish. They grow microgreens great, but not photos.

Here are the Magenta Sunset Swiss Chard microgreens after one day under the light. That would be eight days after planting.

A photo from the side is shown below. 

swiss chard microgreens 8 days after planting

Growing Magenta Sunset Swiss Chard

The hard work is over, and caring for the Swiss Chard microgreens is easy as long as they are not over-watered. 

We check them daily by lifting the tray, judging the weight, and looking at the canopy of the plants to be sure they aren’t drooping.

The Magenta Sunset Swiss Chard microgreens shown below are 16 days old and ready for harvest. 

You can grow them much longer if you want. 

swiss chard microgreens
swiss chard microgreens

Swiss Chard Microgreen Nutrition

Swiss Chard microgreens are packed with vitamins, minerals, and nutrients. The compounds in them are reported to have several health benefits. 

Vitamins include A, C, E, and K, calcium, magnesium, potassium, iron, and zinc. Chard also contains lutein and betalain.

Lutein is reported to help protect your eyes and skin from macular degeneration and has anti-inflammatory properties.

Betulin has been shown to help the detoxification processes.

Both lutein and betulin are not heat-stable, so Swiss Chard microgreens are an excellent way to include these antioxidants into your diet.

Swiss Chard Microgreen Flavor

Swiss Chard microgreens have an earthy flavor and do not contain bitter compounds like Swiss Chard from the garden.

The microgreens are much sweeter than the full leaf and taste like a mixture of beet greens and spinach.

Swiss Chard microgreens, as you can see from the photos of the Magenta Sunset and the Ruby Red, Fantasia, and Golden Sunrise in this article, add a lot of color to your dishes.

Buying Swiss Chard Microgreen Seeds

The Home Microgreens Store has various sizes of packets of Swiss Chard Microgreen seeds. Click the photos below to expand the image for better viewing and the buttons to visit the product pages. 

These Swiss chard seeds will also grow in the garden!  We use them.

Ruby red swiss chard microgreens harvested

Ruby Red Swiss Chard

golden sunrise swiss chard microgreens harvested

Golden Sunrise Swiss Chard

Fantasia Orange Swiss chard microgreens

Fantasia Orange Swiss Chard

magenta sunset purple swiss chard microgreens

Magenta Sunset Swiss Chard


  • Todd

    Todd is the founder of Home Microgreens & the Home Microgreens store. He also writes for several other websites, including MyViewFromTheWoods.com. Todd worked at a large farm market, garden & nursery center for 20 years. Somehow he snuck off to become a geologist and professor before coming back to his senses to write & lecture about microgreens and gardening. When not at the computer, he can be found in the garden, trout stream, or mountain trail with his new Springer Spaniel Caden.

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