The Kohlrabi Connoisseur: A Comprehensive Guide to Growing this Versatile Veggie

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Looking for a unique addition to your vegetable garden? Meet Kohlrabi! This versatile and flavorful plant may not be as familiar as some of its veggie counterparts, but with our complete guide to growing Kohlrabi, you’ll soon be reaping the benefits of this delicious and nutritious crop.

Benefits of Growing Your Own Kohlrabi

  • Rich in fiber for digestion
  • Good source of vitamin C for immune health
  • Contains antioxidants for disease prevention
  • Low in calories for weight management
  • Easy to grow in small spaces

General Information About Kohlrabi

Plant Family: Brassica family (also known as the cabbage family or cruciferous vegetables)
Plant Latin Name: Brassica oleracea var. gongylodes

Plant Variations Available

Kohlrabi is a versatile and nutritious vegetable that comes in different variations. Originating from the Brassica family, kohlrabi is also known as the German turnip, and is widely cultivated around the world.


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One of the most common types of kohlrabi is the white variety. It has a smooth and round shape, and its skin is pale green or white. The flesh is crisp and juicy, with a slightly sweet flavor that resembles a combination of cucumber, broccoli, and turnip. This variety is excellent for eating raw in salads or as a snack.

Another popular variation is the purple kohlrabi, also known as the purple Vienna. It has a similar taste profile to the white variety, but with a more vibrant and eye-catching color. The skin is deep purple, while the flesh is creamy white. The purple kohlrabi is often cooked in stews or roasted for added flavor.

There is also a giant kohlrabi, also known as the Gigante. As the name suggests, this variety is much larger than the others and can grow to the size of a small melon. Its flavor is slightly milder than the white and purple variations, but still has the signature crunch and sweetness.

In addition to these variations, kohlrabi can come in different shapes and sizes depending on the growing conditions and cultivation methods. Regardless of the type, kohlrabi is a great source of vitamin C, fiber, and other nutrients, making it an excellent addition to any healthy diet.

Germinating Kohlrabi

Preferred Zones

If you’re looking to grow kohlrabi outdoors, it’s important to find the right zone that will allow your plants to thrive. Fortunately, kohlrabi is a versatile and hardy vegetable that can grow well in a variety of climates. Here are some of the best zones for outdoor growing of kohlrabi.


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Zone 3: If you live in a colder climate, kohlrabi can still be grown successfully in zone 3. However, you’ll want to make sure to choose a variety that is cold-tolerant, such as Early White Vienna. These varieties can withstand temperatures as low as -30°F, making them perfect for the harsh winters of this zone.

Zone 4: Kohlrabi will grow well in zone 4, especially if you choose a variety that prefers cooler temperatures. This zone is known for its long, cold winters with short growing seasons, so you’ll want to start your seeds indoors and transplant them outdoors once the danger of frost has passed.

Zone 5: This zone is perfect for growing kohlrabi, as it has mild summers and cool, crisp fall weather that is ideal for this vegetable. You can plant your seeds directly in the ground starting in early spring and continue planting until mid-summer for a continuous harvest.

Zone 6: If you live in zone 6, kohlrabi is an excellent choice for your garden. This zone has a moderate climate, with hot summers and cold winters, which makes it the perfect environment for growing kohlrabi. You can start planting in late winter or early spring for a harvest in early summer and continue planting throughout the season for a continuous crop.

Of course, these are just a few examples of the best zones for outdoor growing of kohlrabi. With a little research, you can determine which varieties will grow best in your specific climate and location. With the right cultivation techniques and attention to detail, you’ll be well on your way to growing delicious and nutritious kohlrabi in no time!

Sowing Instructions

Kohlrabi is a great crop for any gardener looking to expand their vegetable repertoire. It’s relatively easy to grow and has a mild taste that can be added to many recipes. Here are the best methods for sowing kohlrabi:

1. Choose the Right Time: Kohlrabi thrives in cooler weather, so it’s best to plant your seeds in the spring or fall. Plan your planting time based on your local climate and frost dates.

2. Prepare the Soil: Kohlrabi prefers nutrient-rich soil with a pH level between 6.0 and 7.5. Prepare the soil by tilling and adding compost or well-rotted manure.

3. Sow Seeds: Sow kohlrabi seeds ½ inch deep and 3-4 inches apart in rows that are 12-18 inches apart. Cover the seeds with soil and water gently.

4. Provide Adequate Water: Kohlrabi needs consistent moisture to grow properly. Keep the soil damp but not waterlogged.

5. Control Weeds: Kohlrabi is a shallow-rooted plant and doesn’t compete well against weeds. Keep the area around the plants free of weeds by pulling or hoeing them.

6. Fertilize: Kohlrabi benefits from fertilization throughout the growing season. Apply a balanced fertilizer every 4-6 weeks or use a slow-release fertilizer at the beginning of the season.

7. Harvest: Kohlrabi is ready to harvest when the bulb reaches 2-3 inches in diameter. Use a sharp knife to cut the bulb off at the base.


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By following these seven steps, you’ll have a successful kohlrabi harvest in no time. Happy gardening!

Preparation Advice

So, you’re looking to grow some kohlrabi, huh? Well, you’ve come to the right place! Here’s some information on the best methods and equipment you’ll need to get started.

First things first, let’s talk about the soil. Kohlrabi needs well-draining soil that is rich in organic matter. Make sure to mix in some compost or other organic material into your soil before planting. Kohlrabi also prefers slightly acidic soil with a pH between 6.0 – 6.8. You can check your soil pH with a soil test kit, which is a handy piece of equipment to have on hand.

Next up, let’s talk about planting. Kohlrabi prefers cool weather and can be planted either in early spring or late summer. You’ll want to sow your seeds about ¼ inch deep and space them 6-8 inches apart. Keep the soil moist but not waterlogged while your kohlrabi sprouts.

To protect your kohlrabi from pests and diseases, you may want to invest in some equipment like row covers or netting. These can help keep insects and birds away from your plants, and prevent the spread of diseases.

Finally, make sure to harvest your kohlrabi when they reach maturity. You’ll know they’re ready when the bulb is 2-3 inches in diameter. Simply cut them off at the base and remove any leaves. Kohlrabi can be stored in the refrigerator for up to a week.

So there you have it, the best methods and equipment you need for growing kohlrabi. With a little bit of effort, you’ll be sure to have a successful harvest!

Germination Tools and Equipment

If you’re looking to start growing kohlrabi, you’ll want to make sure you have the right tools and equipment to ensure healthy germination. Here are some key items you should have on hand:


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1. Seed Starting Trays: Seed starting trays make it easy to grow and organize your kohlrabi seeds. Look for trays with individual cells that will provide enough space for each seed to grow.

2. Seed Starting Soil: Kohlrabi seeds need a nutrient-rich soil to germinate correctly. Opt for seed starting mix that helps with the water retention and drainage.

3. Grow Lights: Kohlrabi seeds require a lot of sunlight to germinate. Invest in grow lights that will provide the light needed for your kohlrabi seeds to grow healthy and strong.

4. Watering Can or Spray Bottle: Watering your kohlrabi seeds can be tricky. Allowing the soil to dry out can be detrimental, but overwatering can also be harmful. To avoid either situation, use a watering can with a misting attachment.


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5. Heating Pad: Kohlrabi seeds germinate best in warm soil. Use a heating pad, or place your seed tray on top of your fridge, to provide a warm and optimal environment for germination.

By using these tools and equipment, you’ll set your kohlrabi seeds up for success and ensure healthy germination. With a bright green sprout and a little patience, you’ll be on your way to growing tasty and nourishing kohlrabi in no time!

Growing Kohlrabi

Light Requirements

When it comes to growing healthy kohlrabi, one of the most important things to consider is lighting. Kohlrabi is a cool-season vegetable that requires a minimum of 4-6 hours of direct sunlight per day to thrive. Ideally, it should receive even more than this, up to 8 hours per day if possible.

For those living in areas with short or unpredictable growing seasons, it may be necessary to supplement natural light with artificial lighting. Grow lights are a reliable option for providing kohlrabi with the optimal amount of light it needs to grow and prosper.

When choosing grow lights for your kohlrabi, it’s important to keep in mind that not all bulbs are created equal. Different types of bulbs emit different spectrums of light, and these spectrums affect kohlrabi growth differently. For best results, choose full-spectrum LED grow lights, which provide a well-rounded spectrum of light that mimics natural sunlight.

For indoor gardening setups, it’s essential to position grow lights at an appropriate height and distance from the plants. Too much light can cause leaf scorch, while too little can lead to weak or spindly growth. Generally, grow lights should be placed at a height of 6-12 inches above the top of the plant canopy, and should remain on for 12-16 hours per day.

By providing kohlrabi with the proper amount and quality of light, you can help ensure healthy growth, abundant yields, and delicious, nutritious crops.

Temperature Requirements

Kohlrabi is a cool-season vegetable that thrives in temperatures between 40°F and 70°F. It is a versatile crop that can be grown in both spring and fall seasons, but it is important to be mindful of the temperature requirements to ensure the best quality produce.

When starting out, kohlrabi seeds should be planted when soil temperatures are above 50°F. This is typically early spring for most regions. As the plant begins to sprout, it is important to ensure that temperatures stay between 60°F-65°F. If temperatures get too hot, too quickly, the plant may bolt, which can stunt growth and result in a woody produce.


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During the growing season, kohlrabi requires a consistent temperature between 55°F-65°F. If temperatures fluctuate significantly, it can also affect the texture and flavor of the vegetable, making it bitter or pithy.

Towards the end of the season, cooler temperatures are essential for the development of the crop. This lowering of temperatures helps to convert starches within the kohlrabi bulb into sugars, which results in a sweeter, more flavorful taste. In the fall, when temperatures begin to drop, it is important to monitor for frost, which can damage or kill the plants.

In conclusion, to grow healthy kohlrabi, it is essential to be mindful of their temperature requirements at every stage of their growth cycle. With proper temperature control and monitoring, you can enjoy a crisp, delicious harvest that will add an extra element of freshness to any meal.

My Favorite Tools For Growing Kohlrabi

Kohlrabi is a unique and delicious vegetable that has been gaining popularity in recent years. It is a member of the Brassica family and is related to vegetables like cabbage, broccoli, and cauliflower. If you want to grow and maintain a healthy kohlrabi harvest, there are a few essential tools and equipment that you’ll need to have on hand.

1. Soil and Fertilizer – Kohlrabi requires well-draining soil with a slightly acidic pH level between 6.0 and 7.5. To maintain healthy growth, you will need to regularly fertilize your kohlrabi plants with a balanced fertilizer.

2. Garden Gloves and Hand Trowel – Kohlrabi is typically grown in garden beds or raised planters, making a good pair of gloves and a hand trowel essential tools for planting and maintaining your kohlrabi.

3. Watering Can and Irrigation System – Kohlrabi requires consistent moisture to promote healthy growth. You will need to water your kohlrabi plants regularly, either with a watering can or an irrigation system, to ensure that they receive the necessary amount of water.


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4. Pruning Shears – To ensure that your kohlrabi produces healthy and delicious bulbs, you may need to thin certain plants as they grow. A good pair of pruning shears can help you safely trim back any plants that are struggling or showing signs of disease.

5. Row Covers – Kohlrabi is susceptible to pests and diseases, including flea beetles and clubroot. Row covers can help protect your kohlrabi from these threats, ensuring that your plants stay healthy and productive.

In conclusion, with these tools and equipment, you’ll be well-equipped to grow and maintain a healthy kohlrabi harvest. Remember to follow proper planting and maintenance techniques, water consistently, and protect your plants from pests and disease. With a little bit of care and attention, you’ll be enjoying delicious, nutritious kohlrabi in no time!

Preferred Soil Type

Kohlrabi is a versatile and tasty vegetable that can be grown easily in many different soil types. However, to ensure optimal growth and healthy plants, there are some specific soil requirements that should be met.

First and foremost, kohlrabi thrives in well-draining soils with good porosity. This allows for adequate air and water flow to the roots, which is essential for healthy growth. Heavy clay soils or soils that retain too much moisture should be avoided.


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In terms of pH, kohlrabi plants prefer slightly alkaline soil with a pH between 6.0 and 7.5. This can be easily tested with a soil test kit, which can be purchased at most garden centers or online.

It’s also important to provide ample nutrients for your kohlrabi plants. A balanced fertilizer with equal amounts of nitrogen, phosphorus, and potassium is ideal. A slow-release fertilizer is a great option, as it will gradually release nutrients over time and provide long-lasting benefits for your plants.

Lastly, kohlrabi benefits from regular soil maintenance practices such as weeding, mulching, and adding organic matter to the soil. This helps to retain moisture, reduce weed competition, and improve soil structure over time.

Overall, with the right soil conditions and proper care, you can enjoy a bountiful harvest of healthy and delicious kohlrabi.

Watering Requirements

Kohlrabi, an unusual but nutritious vegetable, requires a consistent amount of water to grow healthy and big. Since Kohlrabi is a member of the cabbage family, it has a similar water requirement. A Kohlrabi plant should be watered evenly and deeply once or twice per week. Water should be applied slowly to allow it to penetrate deep into the soil.

However, it is also important not to over-water Kohlrabi, which can lead to root rot and other issues. So, it’s recommended to check the soil’s moisture frequently and adjust your irrigation schedule accordingly.

The Kohlrabi plant tends to grow well in well-draining soil since poor drainage can cause the vegetable to rot or develop diseases. As such, Kohlrabi plants should be grown in well-draining soil amendments that can also retain moisture balance.

In summary, providing regular and consistent watering, moderate soil drainage alongside proper soil nutrition can ensure a healthy Kohlrabi plant.

What You Need To Know About Fertilizing Kohlrabi

If you’re planning on growing kohlrabi, fertilizing is an important factor to consider for a healthy crop. Kohlrabi is a member of the brassica family, which means it prefers nutrient-rich soil to thrive in.

Before planting, prepare the soil by adding compost or well-rotted manure. This will provide your kohlrabi with the necessary nutrients it needs to grow strong and healthy. You should aim to achieve a pH level of 6.0 to 7.5.

After planting, the best time to fertilize is when the seedlings are a few inches tall. A balanced fertilizer with an N-P-K ratio of 10-10-10 is recommended. Apply the fertilizer at the rate of 1 tablespoon per plant, ensuring not to get the fertilizer too close to the stem to avoid burning the plant.


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As your kohlrabi grows, side-dress with a nitrogen-rich fertilizer every 3-4 weeks. Adding organic matter such as compost or aged manure will also provide additional nutrients to the soil. Avoid using too much nitrogen during the latter stages of growth as this can lead to excessive leaf growth at the expense of the bulb.

Remember not to over-fertilize as this can lead to root burn, which will cause stunted growth and reduce the quality of your kohlrabi. By providing the right nutrients at the right time, you’ll be able to grow healthy and delicious kohlrabi!

My Favorite Fertilizers For Kohlrabi

Kohlrabi is a unique and tasty vegetable that is packed with essential vitamins and nutrients. To help your kohlrabi grow healthy and strong, it’s important to use the right fertilizer.

One of the best fertilizers for kohlrabi is a balanced NPK (nitrogen, phosphorus, and potassium) fertilizer. This will provide your plants with the nutrients they need to grow healthy and produce large, tasty bulbs. You can find these fertilizers at your local gardening store, or even online.

Another great option is to use organic fertilizers, which are made from natural materials and are free from harmful chemicals. This type of fertilizer is perfect for those who want to grow their kohlrabi in an eco-friendly way. You can use compost, manure, or bone meal to fertilize your plants.

Lastly, it’s important to choose a fertilizer with the right balance of nutrients based on the specific needs of your kohlrabi plants. You can determine this by checking the soil pH and acidity levels, as well as the overall health of your plants.

By using the right fertilizer, you can help your kohlrabi grow healthy, flavorful, and nutrient-rich, making it the perfect addition to any kitchen or garden.

Harvesting Kohlrabi

Time To Maturity

Kohlrabi is a type of vegetable that belongs to the Brassica family, which also includes broccoli and cabbage. Kohlrabi is a unique vegetable that is known for its bulb-like shape and mild, sweet flavor. If you’re interested in growing kohlrabi in your garden, you might be wondering about the timeline for its growth and development.

From the time that kohlrabi seeds are planted in the ground, it typically takes around 60-70 days for the vegetable to reach maturity. This time frame can vary depending on a number of factors, such as the growing conditions, the climate, and the specific variety of kohlrabi that you’re planting.

In order to get your kohlrabi to mature as quickly and efficiently as possible, you’ll want to start by choosing a planting location that receives plenty of sunlight and has well-draining soil. It’s also important to keep the soil consistently moist throughout the growing period, since kohlrabi plants require a fair amount of water in order to thrive.

As your kohlrabi plants begin to grow and sprout, you’ll want to keep an eye out for any signs of pests or disease. Aphids and cabbage worm are common pests that can impact kohlrabi growth, while fungal diseases like clubroot can also pose a serious threat to the plants. By monitoring your plants carefully and treating any issues quickly, you can help to ensure that they grow healthy and strong, and that you’re able to enjoy delicious, mature kohlrabi in just a couple of months’ time.

Harvest Instructions

Kohlrabi is a versatile and nutritious vegetable that is a member of the cabbage family. It has a delicious, sweet flavor and a crispy texture that makes it a popular ingredient in salads, stir-fries, and other dishes.

If you’re looking to harvest kohlrabi, here are some tips to help you get started:

1. Check for maturity: Kohlrabi is typically ready to harvest 55-60 days after planting. The bulbs should be about 3-4 inches in diameter and should feel firm to the touch. Don’t wait too long to harvest, or the bulbs may become woody and tough.

2. Use a sharp knife: To harvest kohlrabi, you’ll need a sharp knife that can cut cleanly through the stem. Cut the stem about 1 inch above the soil line, being careful not to damage the bulb.

3. Remove leaves: After harvesting, remove the leaves from the kohlrabi bulb. The leaves are edible and can be used in salads or cooked like spinach.

4. Store properly: Kohlrabi can be stored in the refrigerator for up to two weeks. Keep the bulbs in a plastic bag with the leaves removed to prevent wilting.

5. Enjoy: Kohlrabi is a delicious and healthy vegetable that can be used in a variety of dishes. Try it roasted, grilled, or sautéed for a tasty and nutritious meal.

Overall, harvesting kohlrabi is a simple process that requires a bit of patience and attention to detail. With these tips, you’ll be able to enjoy the sweet and crispy flavor of this versatile vegetable in no time!

My Favorite Tools For Harvest Time

Harvesting Kohlrabi: The Best Tools and Equipment to Get the Job Done


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If you’re planning on harvesting kohlrabi, you need to make sure you have the best tools and equipment for the job. Here are some of the must-haves:

1. Garden Gloves: First things first, you need to protect your fingers and palms from getting cut or scraped while harvesting. So, make sure to wear a pair of good quality garden gloves. They not only protect you, but they also improve your grip as you pull the stem out of the soil.

2. Pruning Shears: Your next tool is a good pair of pruning shears. These are ideal for cutting off the stems at the base of the plant. You want clean cuts to avoid injuring the plant and leaving behind “stumps” that bacteria can use to colonize.

3. Garden Knife: If you’re looking for an alternative, consider using a garden knife. It can do the job just as well as pruning shears, and you may find it easier to maneuver in tight spots.

4. Garden Snips: For leaves or stems, garden snips are the perfect tool. They come in various sizes, so choose the one that fits your needs best.

5. Garden Fork: A garden fork is handy to help dislodge stubborn kohlrabi that is still in the ground. Use it to loosen the soil around the plant.

6. Garden Trowel: A garden trowel is another great tool for loosening the soil before pulling the plant out. It may also be helpful for digging around the plant without cutting through the leaves.

7. Basket or Box: Finally, you’ll want something to carry your kohlrabi in. You can use a basket or a box that can accommodate your harvest. If you plan on harvesting in bulk, you may need something more substantial like a wagon.

Overall, harvesting kohlrabi requires precision and care. Choose the right tools and equipment, and you’ll be rewarded with a delicious, healthy crop.

End of Season & Overwintering

Ah, Kohlrabi – a truly unique and delicious vegetable that’s always a pleasure to grow. As the end of the growing season approaches, you may be wondering what steps you should take to ensure that your Kohlrabi plants survive the winter and produce the best possible harvest next year. Don’t worry, my friend, for I’m here to provide you with all the information you need!

First and foremost, it’s important to start thinking about end of season care as early as possible. This means keeping an eye on your Kohlrabi plants and monitoring them for any signs of disease, pests, or other problems that could compromise their health. Be sure to consistently water them, keeping the soil moist but not too waterlogged, and continue to fertilize as needed.

When the first frost approaches and the leaves of your Kohlrabi plants begin to wilt, this is your sign that it’s time to start preparing them for overwintering. Begin by harvesting any remaining mature Kohlrabi bulbs and removing any dead or damaged foliage. Chop up the remaining greenery and leave it in the soil as a natural mulch, which can help protect the roots of your plants and preserve moisture.

Next, consider adding a layer of compost or other organic matter to the base of your Kohlrabi plants, which can provide valuable nutrients and help to improve soil quality while also protecting against extreme temperature fluctuations during the winter months.

If your Kohlrabi plants are in a location that is prone to heavy snow or frost, it may be necessary to cover them with a layer of protective material such as burlap or straw. This can help to insulate the plants and protect against damage from frost, snow, or ice. Be sure to check regularly to make sure that the cover has not shifted or come loose, and adjust as needed.

Finally, it’s important to keep an eye on your Kohlrabi plants throughout the winter months, checking them periodically to make sure that they are healthy and free from frost damage or other issues. With a little bit of care and attention, your Kohlrabi plants should emerge from the winter season healthy, strong, and ready to produce another bountiful harvest next year!

Final Thoughts on Kohlrabi

In conclusion, germinating, growing, and harvesting kohlrabi is a rewarding and fulfilling experience for any gardener. With the right conditions, care, and knowledge, you can produce healthy and delicious kohlrabi bulbs that are perfect for cooking and eating. Remember to choose a good quality seed, start indoors or outdoors depending on your climate, and transplant carefully to ensure optimal growth. Provide ample sunlight, water, and nutrients, and watch your kohlrabi plants thrive. Once ready, harvest the bulbs and savor the rich and nutty flavor in your favorite dishes. Happy gardening!

Frequently Asked Questions About Growing Kohlrabi

Q: What is kohlrabi and how do I grow it?
A: Kohlrabi is a member of the Brassica family and is grown for its edible bulb-like stem. To grow kohlrabi, start by planting seeds in a well-draining soil with plenty of organic matter. The seeds should be planted ¼ inch deep and 2-3 inches apart. Kohlrabi prefers cooler temperatures and should be planted in the early spring or late summer. It also requires regular watering and fertilization.

Q: How long does it take for kohlrabi to mature?
A: Kohlrabi typically takes 8-10 weeks to mature, but this can vary depending on the variety of kohlrabi and the growing conditions. You can tell when kohlrabi is ready to harvest by checking the size of the bulb-like stem. It should be around 2-3 inches in diameter and feel firm to the touch. Overripe kohlrabi can become tough and woody, so it’s important to harvest it at the right time.

Q: Can kohlrabi be grown in containers?
A: Yes! Kohlrabi can be grown in containers, making it a great option for those with limited garden space. Make sure to choose a container that is at least 12 inches deep and wide enough to accommodate the mature bulb. Fill the container with a well-draining soil mix and plant the kohlrabi seeds as you would in a traditional garden bed. Keep the soil consistently moist and fertilize regularly.

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