How To Grow Kohlrabi Microgreens

<a href=''>Jon Smith</a>Jon Smith
December 23, 2021

Many people have never tasted kohlrabi; however, this tasty vegetable is an absolute must in every grower's microgreen garden. Kohlrabi microgreens add a splash of color and flavor to your microgreen garden.

Unlike full grown kohlrabi, kohlrabi microgreens have pale white or lilac color stems with bright green leaves. The gorgeous microgreens are both tasty and healthy. They are filled with numerous vitamins and minerals, including vitamin C, vitamin B6, iron, potassium, and calcium.

Kohlrabi microgreens contain fiber and antioxidants that provide a number of health benefits. They fight against disease, reduce the risk of cancer, improve your heart health, and lower your blood pressure.

Kohlrabi microgreens will be ready to enjoy in a mere eight to twelve days. The sweet broccoli and turnip flavor pairs beautifully with a variety of dishes, including pasta dishes, sandwiches, and microgreen salads.

Kohlrabi Microgreen Profile

Are you ready to learn how to grow kohlrabi microgreens? These tasty microgreens are quite easy to grow, making them an excellent choice for novice microgreen gardeners. Within about two weeks, you will be harvesting tasty and nutritious kohlrabi microgreens.

Flavor Kohlrabi has a sweet, brassica flavor that is quite delicate.  
Pre-Soak (Yes/No)   You do not need to presoak your kohlrabi microgreen seeds.
Color   Kohlrabi microgreens have pale lilac or white stems with vibrant green leaves.
Germination Time   It will take between two and three days to germinate your kohlrabi microgreens.
Harvest Time   The time to harvest is between ten and fourteen days.
Green Thumb Level (1-5)   2 – Kohlrabi microgreens are extremely easy to grow.

Our kohlrabi microgreen profile provides you with the pertinent information needed to successfully plant, grow, and harvest these tasty microgreens. Follow our step by step instructions on how to grow kohlrabi microgreens.

Frequently Asked Questions

Whether you are a novice microgreen gardener of you are a pro, the following frequently asked questions will provide you with the answers you may have while planting, growing, or harvesting your kohlrabi microgreens.

Do Kohlrabi Microgreens Regrow After Harvesting?

No. Kohlrabi microgreens will not regrow after you harvest your kohlrabi crop. Once you harvest your kohlrabi microgreens, compost the soil and roots.

How Fast Do Kohlrabi Microgreens Grow?

Kohlrabi microgreens are fast growing and will be ready for harvest in about two weeks.

What Do Kohlrabi Microgreens Taste Like?

Kohlrabi microgreens are delicious and have a strong brassica flavor similar to cabbage and broccoli.

What Health Benefits Do Kohlrabi Microgreens Offer?

Kohlrabi microgreens are packed full of nutrients, including antioxidants, B vitamins, calcium, copper, fiber, potassium, vitamin A, and vitamin C. Consuming kohlrabi microgreens offers you the following health benefits:

  • Blood Pressure – Kohlrabi microgreens contain an ample amount of potassium, which helps reduce tension in your blood vessels, which can help decrease blood pressure, improve blood circulation, and benefit your heart health.
  • Bones – The calcium and other minerals found in kohlrabi microgreens help strengthen your bones.
  • Digestion - Kohlrabi microgreens contain large amounts of fiber which helps to improve gut motility and enhance your digestive system naturally.
  • Energy - Kohlrabi microgreens are chockful of vitamins and minerals, including potassium that increases energy levels naturally.
  • Reduced Cancer Risk – The antioxidants and phytochemicals found in kohlrabi microgreens help detoxify the body, rid the body of free radicals, and reduce the risk of developing cancer.
  • Weight Loss – Kohlrabi microgreens contain large amounts of fiber which help you feel fuller longer, which can aid in your weight loss efforts.

Equipment Needed to Grow Kohlrabi Microgreens

There are several different methods that can be used to grow kohlrabi microgreens. Our preferred method is the one described below. When you follow our easy to understand and easy to follow instructions, you will be able to grow large crops of kohlrabi microgreens. The following list of equipment will help ensure your success.

Kohlrabi Microgreens Starter Kit

A starter kit will provide you with the pieces of equipment you need to grow kohlrabi microgreens. The Deluxe Starter Kit at True Leaf Market comes with a selection of seeds, soil, a misting bottle, and microgreen grow trays to help ensure your success.

Specific Equipment Needed for Kohlrabi Microgreens

If you decide to purchase your equipment separately, there are several pieces of equipment you will need. The following list will ensure you have the equipment for kohlrabi microgreen gardening.

Kohlrabi Microgreens Growing Medium

There are two types of growing mediums commonly used for growing kohlrabi microgreens – seed starting soil and coconut coir. Both of these have a variety of advantages and disadvantages that should be considered. We recommend coconut coir because it holds moisture, is pH neutral, and reduces the risk of soilborne diseases.

Coconut Coir

Coconut coir is created using the husks of the coconut. This soilless growing medium is easy to use and is the perfect solution for kohlrabi microgreen gardens.

MOTHER EARTH Coco Plus Perlite Mix - For Indoor and Outdoor Container Gardens, Provides Strong Aeration & Drainage, 70% Coconut Coir, Resists Compaction, 50 Liter
  • Mother Earth Coco + Perlite is a great alternative to potting soil as it enables gardeners to aggressively feed and not worry about over-watering
  • Use Mother Earth Coco + Perlite with indoor and outdoor container gardens
  • Achieve better aeration and drainage with a mix that incorporates 70% of the finest coconut coir and 30% perlite
  • Plant directly in Mother Earth Coco + Perlite
  • Coconut coir resists compaction and last longer in a container (vs traditional growing media)

Seed Starting Growing Medium

Seed starting growing medium is a soilless product that contains nutrients that new crops need to flourish. Because microgreens are harvested at such an immature stage, these nutrients aren't needed. The seeds will contain everything your kohlrabi microgreens need for growth.

FoxFarm Ocean Forest FX14000 -1.5 Cubic Foot Organic Potting Soil
  • SIZE: 38.6 quarts of FoxFarm Ocean Forest Potting Soil for your hungry plants
  • APPLICATION: Ultimate potting soil that has everything your plants need in one bag
  • CONTENTS: Blend of earthworm castings, bat guano, sea-going fish & crab meal, forest humus, moss & more
  • PH LEVELS: Ocean Forest is pH adjusted at 6.3 to 6.8 to allow for optimum fertilizer uptake
  • BENEFITS: Encourages strong branching and a sturdy, healthy growth habit and is ideal for containerized plantings

Kohlrabi Microgreen Growing Trays

Growing kohlrabi microgreens requires a total of three growing trays. You will need two growing trays without holes and one growing tray with drainage holes. We recommend opting for growing trays that measure ten inches by twenty inches; however, other growers prefer to use square trays measuring ten inches by ten inches.

Growing Tray with Drainage Holes  

You will need one tray with drainage holes. This growing tray will be the one you fill with soil and kohlrabi microgreens. This will allow you to water from the bottom up and reduce the risk of mold and other soilborne diseases.

10 Plant Growing Trays (with Drain Holes) - 20" x 10" - Perfect Garden Seed Starter Grow Trays: for Seedlings, Indoor Gardening, Growing Microgreens, Wheatgrass & More - Soil or Hydroponic
  • Quantity 10 - Durable Plastic - WITH Drain Holes
  • Perfect for hydroponic growing and seed starting
  • Approx: 21" by 11" (top measurement). 20" by 10" bottom of tray - See product description below for precise measurments
  • Accomodates 20" x 10" Sure to Grow Hydroponic Grow Pads and Micro-Mats Perfectly
  • Reusable - Great for Greenhouse, Seedlings, wheatgrass, microgreens and more.

Growing Trays without Drainage Holes –

You will need two growing trays without drainage holes. One of these will be used as a humidity dome. You will place your growing tray with drainage holes inside the other growing tray without drainage holes. This setup will allow you to water your kohlrabi microgreens from the bottom up.

10 Plant Growing Trays (No Drain Holes) - 20" x 10" - Perfect Garden Seed Starter Grow Trays: for Seedlings, Indoor Gardening, Growing Microgreens, Wheatgrass & More - Soil or Hydroponic
  • Quantity 10 - Durable Plastic - NO Drain Holes
  • Perfect for use as a drip tray, hydroponic growing and seed starting
  • Approx: 21" by 11" (top measurement). 20" by 10" bottom of tray - See product description below for precise measurments
  • Accomodates 20" x 10" Sure to Grow Hydroponic Grow Pads and Micro-Mats Perfectly
  • Reusable - Great for Greenhouse, Seedlings, wheatgrass, microgreens and more.

Kohlrabi Microgreen Misting Bottle

A misting bottle allows you to water your kohlrabi microgreens without disturbing the seeds. The fine mist is a wonderful way to thoroughly water the soil quickly and efficiently. Kohlrabi microgreens like the soil to be moist; however, overwatering can cause a plethora of problems.

GETTON 2.0L Garden Sprayer, Hand-held Pressure Pump Sprayer Plant Mister Spray Bottle with Adjustable Nozzle and Detachable Wand for Indoor Outdoor Household Cleaning Garden Lawn Watering
  • 【Safe Pressure Valve】The garden spraying bottle equipped with a safety pressure release valve, which allows you to control the pressure of water and automatically releases the excess pressure. The pump holds a good amount of pressure while offers a place reducing fatigue while operating the equipment.
  • 【Adjustable Nozzle】The premium adjustable nozzle of this garden sprayer can be easily adjusted the intensity of the water from direct injection to fine mist spray as desired. Greater even coverage for a better performance.
  • 【Durable & Easy to Clean】The pump sprayer is manufactured from PP material for excellent durability. 2L Translucent water tank can clearly show the liquid level inside so you can add more in time. It is also convenient for cleaning.
  • 【Wide Application】This universal pressure sprayer can accommodate your daily cleaning and watering needs both indoors and outdoors . Ideal for household cleaning, watering plants and flowers, misting veggies, pet bathing, and moisturizing flowers.
  • 【Ergonomic Handle】The pump pressure sprayer comes with an ergonomic 4-finger handle that is non-slip for effortless use and convenient to be carried anywhere. A removable long wand is good to help spray more spaces or hard-to-reach places.

Kohlrabi Microgreens Light Source

Kohlrabi microgreens require an ample amount of light once they have sprouted. A full spectrum grow light ensures your microgreens grow healthy and consistently across the growing tray.

Barrina LED Grow Light, 144W( 6 x 24W, 800W Equivalent), 2ft T8, Full Spectrum, High Output, Linkable Design, T8 Integrated Bulb+Fixture, Plant Lights for Indoor Plants, 6-Pack
  • Full Spectrum - Barrina grow light is a great option for plants that in seedling, vegetative and flowering cycle. It provides light that plants need, especially blue and red light
  • Integrated Plant Light Chips- Compare with the lamp consisting of only "blue chips" + "red chips", integrated plant light chips have more efficiency and better color layout
  • Super Bright - Consume only 144W with 576 LEDS totally, replacing 800W general plant lights. These grow light provid a higher PPFD
  • Easy Installation - Plug and play. And could link up to 6 grow lights in a series by 48 inches connecting cords. Also, you could mount to ceiling or hang up for shelf. Saving your installation cost and time
  • Quality Assurance - 2-year unlimited warranty, easy and fast replacement is offered if any quality issue

(Optional) Kohlrabi Microgreens Heating Mat

A heating mat provides the optimal temperature for germination. To increase germination rates and times, set the thermostat on your heating mat to eighty degrees Fahrenheit. Once your kohlrabi seeds have germinated, simply turn your heating mat off and allow your microgreens to flourish in moderate ambient temperatures.

HYDGOOHO Waterproof Seedling Heat Mat for Seed Starting Propagation and Increase Germination Success 10 Inch x 20.75 Inch MET Safety Standard Certified
  • Makes a differeance in germination time, leafy greens in about 2 days and tomatoes 3-4 days for sprouts.
  • Try to use the seedling heat mat and heat mat thermostat to heat water in the seed container to increase humidity in your grow tent.
  • Using to keep a batch of fermenting beer wort at 72F is also available
  • Great affordable heating solution to starting plants from seed.
  • If you’re doing home gardening for your seasonings, go find this seedling heat mat sets.

(Optional) Kohlrabi Microgreen Planting Rack

Are you limited on space yet want to grow multiple trays of microgreens? A planting rack allows you to use the vertical space in your home to grow microgreens. Furthermore, a planter's rack provides you with places to attach your grow lights, heating mats, and circulation fans.

Storage Shelves 2100Lbs Capacity, 6-Shelf on Casters 48" L×18" W×82" H Wire Shelving Unit Adjustable Layer Metal Rack Strong Steel for Restaurant Garage Pantry Kitchen,Black
  • IMPRESSIVE STORAGE CAPACITY - With six tiers of shelving, this unit boasts an enormous amount of space and shelving. It’s able to provide a great deal of additional storage without taking up too much space itself.
  • STURDY AND DURABLE - Constructed from heavy-duty steel wire, this shelf is durable and resistant to dirt buildup and corrosion. Each shelf has a capacity of up to 220 lbs when properly assembled, with a maximum weight capacity of 500 lbs total.
  • ADJUSTABILITY - You can adjust the height of the storage shelves in one-inch increments, creating a customized unit best suited for your specific storage needs.
  • MULTIFUNCTIONALITY - This metal shelving unit can be used virtually anywhere, in the kitchen, the bathroom, the garage, outdoor shed, and more. It’s perfect for storing tools, clothes, books, and whatever else is taking up space in your home or office. Equipped with wheels, you can transport this unit smoothly and efficiently room to room.
  • FAST, EASY ASSEMBLY: The shelving unit comes packaged ready to assemble, and doesn’t require any tools for installation. In just 15 minutes, your unit can be installed and ready to save space.

(Optional) Kohlrabi Microgreens Circulation Fans

Circulation fans increase the airflow around your microgreens to reduce the risk of mold, powdery mildew, and other diseases associated with damp conditions. The fans gently blow across the microgreens to reduce the risk of these diseases.

Active Air HORF6 6-Inch Clip-On 360-Degree 5W Brushless Motor Hydroponic Grow Fan with Spring-Loaded Plastic Clip for Gardens, Black, 2 Pack
  • LONG LASTING: Fan features a 5W brushless motor that lasts longer and can be hooked up to fan speed controllers; Features a smooth and quiet operation (2 Pack)
  • CLIP-ON DESIGN: Clip-on portable fan is convenient and effective for small spaces; Can be used to help grow healthy plants or for cooling, in your garden, flood tables for airflow under foliage, small spaces, or on your office desk with a spring-loaded plastic clip that won't mar surfaces
  • AIR-FLOW: With the 6-inch adjustable-angle head that rotates 360 degrees you can direct airflow where you need it and it can also be wall-mounted to free up space
  • DURABLE: The cooling fan features 3 durable plastic blades and the easily-removable safety grills make cleaning a breeze; The motor outlasts traditional fans that use oil to lubricate rotation
  • SPECIFICATIONS: The product has a 6-foot power cord and is powered by DC 5V/5W making it energy efficient; Weight: 1 pound; Dimensions of (L x W x H): 6 x 8 x 8 inches; Quantity: 2

Kohlrabi Microgreen Seed Options

There are several kohlrabi microgreen seed options available. The most popular ones are available at True Leaf Market and include:

Purple Vienna Kohlrabi Microgreen Seeds

Purple Vienna kohlrabi microgreen seeds by Mountain Valley Seed Company are ready for harvest in a week and a half to two weeks. These tasty microgreens have a strong cabbage and broccoli flavor and are chockful of nutrients. The beautiful pale purple stem and bright green leaves create interest in your favorite dishes.

Organic Purple Vienna Kohlrabi Microgreen Seeds

Are you looking for a delicious, organic non-GMO kohlrabi microgreen? Sustainable Seed Company offers Purple Vienna kohlrabi microgreen seeds at True Leaf Market. These delicious microgreens have a delightful cabbage and turnip flavor with bright purple stems and green leaves.

Early White Vienna Kohlrabi Microgreen Seeds

Mountain Valley Seed Company's Early White Vienna Kohlrabi Microgreen Seeds have a high germination rate and pairs wonderfully with a variety of brassicas, including radish microgreens. These delightful kohlrabi microgreens taste like a combination of cabbage and broccoli and feature a white stem and a vibrant green top.

Step by Step Growing Guide for Kohlrabi Microgreens

Are you ready to grow kohlrabi microgreens? Our easy step by step growing guide will provide you with easy to follow instructions to ensure your success. Follow our directions and you will be enjoying a bountiful harvest of kohlrabi microgreens within two weeks.

Step 1 Prepare Your Kohlrabi Microgreen Growing Trays

The first step is to gather your supplies and prepare your growing tray. Grab a ten inch by twenty inch growing tray with drainage holes and fill it with your growing medium. The growing medium should be filled to slightly below the lip of the tray.

Kohlrabi microgreens require moist, not sopping soil. There are two ways to ensure your soil is properly moistened – using your misting bottle or allowing your growing medium to soak in a sink of water.

If you will be using your misting bottle, evenly spray the soil with water, using approximately ten sprays. Then, allow the water to soak in for about fifteen minutes. Repeat the process three to five more times.

 If you will be soaking your growing tray in a sink of water, place the tray in an inch of water and allow it to soak for approximately thirty minutes. Then, allow any excess moisture to drain from the growing medium.

Step 2 Plant Your Kohlrabi Microgreen Seeds

Once your soil is thoroughly moistened, place your tray with drainage holes inside one of the trays without holes. Then, spread about three to four tablespoons of seeds evenly across your soil.

Use the remaining tray and gently press the seeds into the soil. Then, cover with a light layer of growing medium and press down with the lid to ensure the soil is even and level.

Step 3 Understand the Kohlrabi Microgreen Germination Process

Once you have planted your seeds, it is time to allow your seeds to germinate. Seeds need consistent temperature, no light, and evenly distributed weight. Take your remaining growing tray and invert it and place it on top of your seeds.

Place a heavy stone, heavy book, or weight atop the growing tray. Don't worry the weight will not hurt the seeds and will cause the roots to grow downward for better germination.

Finally, place your microgreen trays on your growing rack atop your heating mat and set the temperature to a balmy eighty degrees Fahrenheit. It will take your microgreen seeds approximately two to three days to germinate.

Check the soil's moisture level daily. If the soil has begun to dry out, either add a small amount of water to the bottom tray and allow the soil to draw moisture up for thirty minutes, or lightly spray the soil with your misting bottle.

Once ninety percent of the kohlrabi microgreen seeds have germinated, it is time to remove the weight and blackout lid. Now, the plants need bright light for optimal growth.

Step 4 Place Your Kohlrabi Microgreens Under Grow Lights

Once your kohlrabi microgreen seeds have germinated, you will want to place them in a well-lit area. Although your microgreens do not need direct sunlight, they will grow the best under a grow light.

The grow light should be placed approximately twelve to eighteen inches from the germinated microgreens. The lights should be left on for about eighteen hours each day. When grow lights are used, your microgreens will grow straight rather than stretching to one side or the other towards the light.

Step 5 Turn on Your Circulation Fans for Kohlrabi Microgreens

Once your kohlrabi microgreens have been placed under grow lights, it is time to turn on your circulation fans. Your circulation fans should blow across the tops of your kohlrabi microgreens, not across the top of the soil. Make sure your fans are blowing horizontally, not vertically or diagonally as this can dry out your soil too quickly.

Step 6 Know When to Harvest Kohlrabi Microgreens

Knowing when the best time to harvest kohlrabi microgreens is essential to tasty microgreens. They will be ready to harvest once the first set of true leaves form and the microgreens are two to three inches tall.

Many individuals are surprised to learn that the flavor of a microgreen can change within a day or two. To ensure delicious microgreens, begin tasting your microgreens when they reach two inches tall. Once your kohlrabi microgreens have reached the peak of flavor, it's time to harvest your microgreens. The best time to harvest is between day five and day fourteen.

Once the flavor has developed, withhold watering your microgreens for twelve hours. Doing this will ensure your kohlrabi microgreens are crispy and delicious. Furthermore, this will help increase storage times.

Harvesting Kohlrabi Microgreens

You will need very few supplies for harvesting your kohlrabi microgreens. All you will need is a paper towel, a pair of scissors or a sharp knife, and a storage box if you will not be enjoying them immediately.

Begin with clean, dry hands, and clean dry equipment. Then, gently grasp the microgreens loosely in your non-dominant hand. Then, using your scissors or knife, cut the microgreens slightly above soil level. Work quickly and place the cut microgreens on your paper towel.

It will only take a couple of minutes to cut an entire tray of kohlrabi microgreens. Once they have been harvested, you must decide what you will be doing with them.

If you will be eating immediately, dunk the microgreens in a bowl of cool, not cold water. Then, place them on a paper towel and allow them to dry before using.

Storing Kohlrabi Microgreens

If you will be storing your kohlrabi microgreens, the most important thing is to not allow one drop of moisture to touch the microgreens prior to eating. This means you should not wash them until you are ready to eat them.

Instead, as soon as you harvest your microgreens, place them in your favorite storage container or airtight storage bag. Then, place the bag in the crisper drawer of your refrigerator. For best results, the optimal storage temperature for kohlrabi microgreens is thirty five to forty degrees Fahrenheit.

Final Thoughts

Kohlrabi microgreens have a distinct flavor that can be added to salads, sandwiches, pasta, or used as a garnish. The brassica flavor pairs wonderfully with sharp flavors like radishes as well as sweet microgreens like corn microgreens.

Kohlrabi microgreens are extremely easy to grow. Once planted using our detailed step by step instructions, it will take between one and two weeks for your microgreens to be ready for harvest. Whether you are new to microgreen gardening or have been growing microgreens for several years, kohlrabi microgreens are a delicious microgreen to include in your repertoire.

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How To Grow Kohlrabi Microgreens
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About The Author
I have been growing microgreens for myself and others for quite some time now and I absolutely love the process.

Even more I love spreading awareness of an amazing crop that has so many nutritional benefits for our bodies which improve our overall health and wellbeing.

Jon Smith

Copyright 2021 All Rights Reserved!

As an Amazon Associate I earn from qualifying purchases.