Kohlrabi (2024)

Kohlrabi (1)

  • Latin Family:Brassicaceae
  • Latin Genus:Brassica
  • Ease of Growing:Moderate
  • Growing Type:Annual

This somewhat bizarre looking vegetable is relatively rare in gardens and kitchens, in fact most people don't even know what it is. Those who are familiar with it, consider it one of the best tasting of all the Brassicas. The edible part of the kohlrabi is not a root, but the swollen above ground portion of the stem, which tastes like a turnip.

Kohlrabi is actually a very useful crop, fast growing, compact, nutritious and slightly more tolerant of warm weather than most Brassicas. Much that has been said about cabbage also applies to kohlrabi.

Kohlrabi History

The name kohlrabi comes from the German Kohl for cabbage and Rabi for turnip, which leads some to believe that it was created as a cross between the two plants. Whether or not that is true, it certainly looks like both a cabbage and a turnip. It was probably developed in northern Europe during the late 15th or early 16th Century.

Soil Preference

  • PH (min/max): 6.0 - 7.0
  • PH Ideal (min/max): 6.4 - 6.6

Kohlrabi likes a light, rich, moisture-retentive soil, with lots of organic matter.

How to care for Kohlrabi?

Kohlrabi must grow fast for the best quality, so give the plants all the water and nutrients they need.

Water

Keep the soil evenly moist or the bulbous stems may turn woody. Fortunately this isn't often an issue with this cool weather crop.

Fertilizer

Low nitrogen. High potassium. High phosphorous. It's a light feeding crop and doesn't need a lot of nitrogen, but it does like potassium (add greens and or wood ashes). It also likes calcium.

Seeds

Seed Viability:4 - 5 Years

Germination Percentage:75.0

Like Cabbage, Kohlrabi is a biennial and takes two years to produce seed. Don't save seed from plants that flower in their first year, as you don't want to raise an annual strain that [bolts] quickly. Most Brassicas are usually self-incompatible and must be cross-pollinated by insects. This means there must be a number of plants flowering at the same time. All of the Cole crops are the same species and will cross with each other. To maintain racial purity you have to ensure that only one type flowers at once. The alternative is to isolate them, either by distance (1000 yards for different varieties, 1500 yards for different crops), or by caging them (don't forget they need insects for pollination).

In very cold climates you may have to lift the plants in fall and store them in a root cellar over the winter. Re-plant them in spring when it warms up.

Light

Sun: min. 6 hours daily

Full sun.

Conditions:Cold, Cool

Season:Short Season, Long Season

Storage

Kohlrabi will keep for several weeks in a plastic bag in a refrigerator.

Storage Req:Refrigerator
Storage Temp:35-40°F
Storage Length:1-14 days

Problems

Boron deficiency

All plants of the Cabbage family are susceptible to boron deficiency, which manifests itself as hollow stems. Compost should supply the plants with all the boron they need.

Kohlrabi Types

  • Purple & Violet
  • As the name suggests, kohlrabi was developed in Germany. It is sometimes said to be a cross between a cabbage and a turnip, but that may be just because it seems like one.

  • White & Green
  • As the name suggests, kohlrabi was developed in Germany. It is sometimes said to be a cross between a cabbage and a turnip, but that may be just because it seems like one.

Pests

  • Cabbage Root Maggot
  • Deer
  • Cabbageworms
  • Gophers
  • Groundhog
  • Leafminers
  • Slugs and snails
  • Whiteflies
  • Aphids
  • Cutworms
  • Flea Beetle
  • Nematodes
  • Thrips

Diseases

  • Boron
  • Wirestem
  • Clubroot
  • Damping Off
Kohlrabi (2024)

FAQs

Is kohlrabi a laxative? ›

Supports Gastrointestinal Health

Kohlrabi is rich in both soluble and insoluble (doesn't dissolve in water) fiber. Insoluble fiber can't be broken down by your digestive system, speeding up the movement of food through your stomach and intestine. It also adds bulk to your stool.

Is kohlrabi good for your kidneys? ›

It's a nutrient-rich plant, and the leaves, stems and bulbs can all be consumed for a slightly sweet, earthy flavor. Research has shown that the phytochemical content of kohlrabi makes it a powerhouse when it comes to fending off cancer, diabetes and high cholesterol while improving liver and kidney function.

Is kohlrabi good for your gut? ›

Kohlrabi is a good source of both soluble and insoluble fiber. The former is water-soluble and helps maintain healthy blood sugar and cholesterol levels. On the other hand, insoluble fiber isn't broken down in your intestine, helping add bulk to your stool and promote regular bowel movements ( 19 ).

Is kohlrabi anti-inflammatory? ›

A study by Jung et al. in 2014 showed that the green and purple-red kohlrabi varieties have flavonoids and phenolics compounds that act as anti-inflammatory agents. The kohlrabi extracts also inhibit the production of compounds that are involved in inflammatory processes.

Is kohlrabi better for you than potatoes? ›

A cup of cubed or sliced kohlrabi has just 36 calories and 8 grams of carbs - about one-third of the carbs and calories found in potatoes. Blood-pressure friendly: A cup of kohlrabi slices has just 27 mg sodium, with more potassium than a medium banana, making it doubly beneficial for managing blood pressure.

Is kohlrabi a superfood? ›

Kohlrabi is an excellent source of vitamin C and a good source of fiber, vitamin B6 and potassium. Vitamin C plays an essential role in repairing wounds and forming scar tissue, as well as maintaining bones, teeth, and cartilage. Vitamin C rich foods also support absorption of iron.

Is kohlrabi better raw or cooked? ›

All parts of the kohlrabi are edible, though most people just stick to the bulbous bottom. The leaves and stems are best sautéed or added to a stir-fry. The bulb can be eaten raw, which maintains its super-crisp texture and mild bite, or it can be roasted, sautéed, steamed, or boiled and mashed like a potato.

Is kohlrabi good for your liver? ›

Kohlrabi is taken by mouth as an antioxidant and for cancer, heart disease, constipation, diabetes, gout, hemorrhoids, hot flashes, high cholesterol, liver disease, menstrual symptoms, a pain disorder called sciatica, scurvy, weight loss, and wound healing.

When should you eat kohlrabi? ›

Be sure to eat them when they're young, as the flavor intensifies and they toughen with age. The freshness of the attached greens is a good indicator of age, so try to find kohlrabi with greens attached.

Why is kohlrabi so popular? ›

The vegetable is very high in Vitamin C and fiber, and is a good source of Vitamin B-6 and potassium, too. It's also fairly high in minerals, including copper and manganese. Kohlrabi is also low in calories, unless you mix it with flour and egg and fry it as in these pancakes.

What is the number one vegetable for inflammation? ›

Broccoli: Cruciferous vegetables such as broccoli, cauliflower, Brussels sprouts, cabbage, arugula and kale are rich in sulforaphane, an antioxidant that helps decrease inflammation. They also contain soluble fiber, which keeps digestion on track.

What is kohlrabi called in English? ›

Kohlrabi (German: [koːlˈʁaːbi]; pronounced /koʊlˈrɑːbi/ in English; scientific name Brassica oleracea Gongylodes Group), also called German turnip or turnip cabbage, is a biennial vegetable, a low, stout cultivar of wild cabbage.

What are the most laxative vegetables? ›

Five of the best vegetables that meet these criteria include green peas, artichokes, broccoli, collard greens and Brussels sprouts. However, the combined efforts of a fiber-rich diet, adequate water intake and exercise are all needed to help you go No. 2.

What food is the strongest laxative? ›

The best naturally laxative foods are those that are rich in fiber, like papaya, plum, pumpkin, orange, oatmeal and chia seeds.

Is kohlrabi good for diarrhea? ›

Both the water and fiber abundant in kohlrabi help this veggie are good for your gut and digestive health as well. It contains both soluble and insoluble fiber, which promotes overall digestive regularity while combating common gastrointestinal (GI) complaints like gas, bloating, diarrhea, and constipation.

What is the highest laxative fruit? ›

Check-out the natural laxatives in the form of fruit that you can consume:
  1. Papaya. Papaya is very rich in water and fiber, and is well-known for its ability to help with overall digestion. ...
  2. Cherries. ...
  3. Plum. ...
  4. Orange. ...
  5. Avocado. ...
  6. Banana. ...
  7. Fig. ...
  8. Kiwi.
May 24, 2024

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