How To Grow Kohlrabi Microgreens From Seed To Harvest

How To Grow Microgreens

Kohlrabi microgreens are fast and easy to grow, making them a great microgreen for beginners, and can be used to add flavor, texture, and visual appeal to soups, salads, and sandwiches. As with all microgreens, Kohlrabi is not short on healthy benefits! It is filled with nutrition that is known to help with digestion, weight loss, vision, and other health issues.

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How To Grow Kohlrabi Microgreens

How To Grow Kohlrabi Microgreens

Now that you know what kohlrabi microgreens are let's get into the materials you are going to need to follow along in this guide.

You can grow kohlrabi microgreens with just a microgreen kit and a pack of kohlrabi seeds right by your window if you have a well sunlit window. If not, then I recommend you get an LED grow light. You'll also need a wired shelf to place the LED grow lights under.

Materials Needed:

You'll only need to buy grow trays and grow lights once, after that you can reuse them over and over again for every grow. The only materials you'll need to buy again are the seeds of any microgreens you'll like to grow next and a growing medium such as coco coir.

First start with some kohlrabi seeds, I recommend getting Kohlrabi seeds from True Leaf Market as they have given me the most success.

Step 1. Prepare The Grow Tray

We will be using two 10 by 20-inch trays for this grow. One will be beneath the other filled with water. While the one above will have drainage holes so the water can reach the roots of the microgreens. This will prevent mold from growing and overall just make the growing process so much easier.

Do not add water to the one below yet, first grab the tray without drainage holes and fill it with coco coir. Then smooth out the surface and mist it well with a spray bottle. If you don't have a spray bottle then just sprinkle water over the coco coir until it is well moisturized.

Step 2. Add The Seeds

Make sure the growing medium is well hydrated and add the seeds on top. Then spread the seeds evenly with your hands throughout the container. Place enough seeds to get a thicker crop but ensure that you don’t overseed. That can cause your microgreens to grow unevenly, wilt, and even mold.

Step 3. Cover The Seeds

After planting mist the seeds and do not top the seeds with soil, just place another container on top to blackout the seeds for 2-3 days. It's important to keep the seeds and growing medium moist during the germination phase. On day 3, check out how much the kohlrabi seeds have grown. If they are evenly sprouted and have tiny, folded leaves, you can take the cover tray off for good.

Step 4. Uncover And Give Light

On day 3 or 4 give your kohlrabi microgreens at least 12 hours of light every day and they’ll quickly turn green, I highly recommend you use LED grow lights. Direct sunlight and fluorescent lights are also good. If your microgreens angle for light, be sure to rotate the tray occasionally.

Step 5. Check Daily

Your microgreens should have the right balance of water from now till harvest. This is where the bottom tray comes in. Instead of watering with the spray bottle, you are now going to use the bottom tray and fill it with water, but don't overfill it.

You can still water from the top but just make sure to avoid the leaves as this could increase the chances of mold growth.

How To Harvest Kohlrabi Microgreens

Kohlrabi Microgreens

Kohlrabi microgreens are usually ready to harvest 8-12 days from seed, or when they reach about 2 inches in height. Kohlrabi microgreens are best harvested with scissors or a knife. Cut about half an inch above the growing medium, and there you go you have now successfully grown kohlrabi microgreens. Pretty easy right?

Washing and Drying Kohlrabi Microgreens

Use a colander to rinse your kohlrabi microgreens thoroughly under cold water. Dry the microgreens completely by spreading them over some paper towels and letting them air dry. You can also speed dry them by using a fan on a slow setting. Cut microgreens are best if eaten right after drying.

How To Store Kohlrabi Microgreens

After you harvest your kohlrabi microgreens you might be wondering how you're going to store them. Just simply place them loosely in a bowl or container and put them in the refrigerator.

What Kohlrabi Microgreens can be used for

These flavorful microgreens make a great base for any microgreen salad. The interesting color combinations make them great garnishes or additions to any soup or sandwich.

Health Benefits of Kohlrabi Microgreens

Kohlrabi microgreens have many disease-fighting properties. Other Health Benefits include:

1. Reduces Muscle Disorders

Kohlrabi contains notable quantities of potassium, and potassium has been found in multiple studies to stimulate the neural connectivity of muscles and the brain. Therefore It maintains optimal muscle and nerve function and helps keep our reflexes fast. (1)

2. Improves Bone Health

There are also specific properties of potassium that neutralize several acids in the body, which helps in maintaining and preserving calcium, making it easy to use for bone strength and durability. (2)

3. Supports The Nervous System

Potassium also helps improve the efficiency of nerve reflexes that send messages from one body part to another. This helps the muscles in your body complete many exercises every day without getting tired fast. (3)

4. Lowers Risk Of Heart Disease

Heart disease is one of the leading causes of death in the world. Luckily Kohlrabi microgreens contain significant amounts of Vitamin C as seen in the chart below, and Vitamin C was found in one study to lower your risk of heart disease by 25%. (4)

5. Supports Immune System

Vitamin C is also involved in many parts of the immune system, and low vitamin C levels have been associated with poor health outcomes. Vitamin C helps the body create white blood cells which protect the body from infection. (5)

Kohlrabi Microgreens Nutritional Chart

​Scientific Name:

​​Brassica Oleracea Gongylodes

​​​​Minerals per 100g of (FW)

​​Calcium, Ca

​24 mg

​Magnesium, Mg

​19 mg

​​Phosphorus, P

​​46 mg

​​Potassium, K

​​350 mg

​​Sodium, Na

​20 mg

​​Iron, Fe

​​0.4 mg

​​Zinc, Zn

​​0.03 mg

​Copper, Cu

​​0.129 mg

Vitamins per 100g of (FW)


​12.3 mg

​Vitamin C

62 mg

​​Vitamin B-6

0.15 mg

​Vitamin E

​​0.48 mg

Other Nutrients:


​​1.7 g


​​3.6 g

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