How to Grow Kohlrabi in Your Garden In Cool 5 Steps

Kohlrabi thrives in cool-season conditions and prospers in a sunny location with nutrient-rich,

well-drained soil.

Before planting, enrich the soil by incorporating organic matter and a complete fertilizer into the

designated area.

To grow Kohlrabi in your garden sow seeds at a depth of ¼-½ inch approximately

1-2 weeks before the last spring frost.

When thinning seedlings or transplanting, maintain a spacing of 6 inches between

kohlrabi plants in rows spaced 1 foot apart.

Consistent irrigation is essential, ensuring plants receive regular moisture while avoiding stress

from either excessive or insufficient water and fertilizer during growth.

Kohlrabi, being less hardy among cabbage-like vegetables, is susceptible to flowering if exposed to

temperatures below 45ºF.

Additionally, hot weather may lead to the stem becoming woody and tough.

To safeguard against potential issues, implement insect and disease control measures throughout

the growing season.

Harvest kohlrabi when the stem enlarges to 2-3 inches in diameter.

How to Grow Kohlrabi in Your Garden In Cool 5 Steps

To Grow Kohlrabi in Your Garden Recommended

Kohlrabi Varieties

How to Grow Kohlrabi In Your Garden

Soils

Grow Kohlrabi in your garden prefers fertile, well-drained soil rich in organic matter for best

growth.

Most soils in Utah are suitable for kohlrabi production.

Soil Preparation

Before grow Kohlrabi in your garden, determine fertilizer needs with a soil test and then follow

the recommendations are given with the test report.

If fertilizer applications are warranted, work the fertilizer into the top 6 inches of soil.

If you fertilize with compost, apply no more than 1 inch of well-composted organic matter

per 100 square feet of garden area.

Plants

Kohlrabi can be grown from seed or transplants.

Seeds should be planted ¼-½ inch deep and thinned to the final stand when plants

have 3-4 true leaves.

Plants removed at thinning can be transplanted to adjacent areas.

Transplants can be used to provide earlier harvest.

Transplants should have 4-6 mature leaves and a well-developed root system before planting.

Generally, 5-6 weeks are required to grow transplants to this size.

Planting and Spacing

Seeded or transplanted kohlrabi should be spaced 6 inches between plants in the row with rows

1 foot apart.

Kohlrabi grows best when temperatures do not exceed 75°F.

Young plants may be damaged by hard frosts. Mature plants will flower if average temperatures

during growth are less than 45°F.

Grow Kohlrabi in your garden transplants may be planted 1-2 weeks before the last frost date for

the growing area.

Seeded kohlrabi may be planted at the same time. For fall-maturing kohlrabi, select early-maturing

cultivars and plants 50 days before the anticipated maturity date.

The maturity date can be timed for 2-3 weeks after the first fall frost.

Grow Kohlrabi in your garden but high summer temperatures reduce growth, decrease quality,

and cause the enlarging stems to become tough and woody.

In hot areas, it is best to grow kohlrabi in your garden as a spring or autumn crop.

Wate

To grow kohlrabi in your garden Water kohlrabi frequently, since the roots are shallow.

About 1-2 inches of water are required per week.

Use drip irrigation if possible to conserve water.

Grow Kohlrabi in your garden applying mulch around the plant also helps conserve soil moisture

and reduces weed growth.

To Grow Kohlrabi in your garden moisture fluctuations will cause the stems to become tough

and woody.

Fertilization

Apply ½ cup per 10 feet of row of a nitrogen-based fertilizer (21-0-0) 3 weeks after

transplanting or thinning to encourage rapid plant growth.

Place the fertilizer 6 inches to the side of the plants and irrigate it into the soil.

Mulches and Row Covers

Plastic mulches can help conserve water, reduce weeding, and allow earlier planting and maturity,

especially with transplants.

Fabric covers are used to protect seedlings and transplants from frosts and insect pests.

To Grow Kohlrabi in your garden apply organic mulches when temperatures increase above

80°F.

Organic mulches such as grass clippings, straws, and shredded newspaper help cool the soil, reduce

water stress, and help control weeds.

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Growing Kohlrabi

Soil Requirements

To grow Kohlrabi in your garden Kohlrabi flourishes in fertile, well-drained soil enriched with

organic matter.

Fortunately, most soils in Utah are conducive to successful kohlrabi production.

Preparing the Soil

Prior to planting, assess the soil’s nutritional needs through a soil test and follow the provided

recommendations. If fertilization is required, incorporate the fertilizer into the top 6 inches of

soil.

For those using compost, limit the application to 1 inch of well-composted organic matter per

100 square feet of garden area.

Planting Options

Kohlrabi can be cultivated either from seeds or transplants.

Plant seeds at a depth of ¼-½ inch, thinning to the final stand when plants boast 3-4

true leaves.

Transplanted seedlings, featuring 4-6 mature leaves and a well-developed root system, offer an

earlier harvest option. It typically takes 5-6 weeks to grow transplants to this size.

Planting and Spacing Guidelines

Whether seeded or transplanted, maintain a spacing of 6 inches between kohlrabi plants in

rows spaced 1 foot apart.

Optimal growth occurs when temperatures stay below 75°F.

Protect young plants from hard frosts, and be mindful that mature plants may flower if average

temperatures during growth fall below 45°F.

For fall maturation, select early cultivars, planting 50 days before the anticipated maturity date,

timed for 2-3 weeks after the first fall frost.

In hot regions, it’s advisable to grow kohlrabi as a spring or autumn crop to mitigate the negative

effects of high summer temperatures.

Watering Practices

To Grow Kohlrabi in your garden given the shallow nature of kohlrabi roots, frequent watering is

essential, with a recommended

weekly amount of 1-2 inches.

Drip irrigation is preferable for water conservation, and applying mulch around the plants aids in

moisture retention while curbing weed growth.

Consistent moisture levels prevent stems from becoming tough and woody.

Fertilization Strategy

Boost rapid plant growth by applying ½ cup of nitrogen-based fertilizer (21-0-0) per

10 feet of row, 3 weeks after transplanting or thinning.

Place the fertilizer 6 inches to the side of the plants and irrigate it into the soil.

Mulching and Row Covers

To grow Kohlrabi in your garden utilize plastic mulches to conserve water, minimize weeding, and

facilitate earlier planting and maturity, especially with transplants.

Employ fabric covers to shield seedlings and transplants from frost and insect pests.

In warmer temperatures exceeding 80°F, opt for organic mulches like grass clippings, straw,

or shredded newspaper to cool the soil, alleviate water stress, and control weed growth.

Problems with Growing Kohlrabi

Weed Management

Effectively managing weeds is crucial for the successful cultivation of kohlrabi.

Utilizing both plastic and organic mulches proves highly effective in weed control.

It is essential to address weed growth when plants are in their early stages of development,

ensuring that they do not compete with kohlrabi for nutrients and space.

To grow Kohlrabi in your garden Exercise caution when cultivating the soil to remove weeds,

especially when the plants are small.

Take care not to damage the delicate roots of the kohlrabi during weed removal.

By implementing proactive weed control measures and being mindful of root

protection, you contribute to the overall health and productivity of your kohlrabi

crop.

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Harvesting and Storing Kohlrabi

When it comes to harvesting kohlrabi, it’s essential to wait until the swollen stem reaches a

diameter of 2-3 inches.

Larger stems tend to develop a tough and woody texture, affecting the overall quality.

The young leaves of kohlrabi are also edible, offering a tasty addition to your culinary endeavors,

similar to cabbage or kale.

For optimal storage, keep harvested kohlrabi at a temperature of 32°F with a relative

humidity of 95%.

This ensures a shelf life of 2-3 weeks, allowing you to enjoy your homegrown produce over an

extended period.

When preparing kohlrabi for consumption, peel off the outer skin to reveal the crisp inner flesh.

This versatile vegetable can be enjoyed both raw and cooked.

With a flavor reminiscent of turnips and a texture akin to water chestnuts, kohlrabi adds a unique

and delicious dimension to your culinary creations.

Experiment with various cooking methods to fully appreciate the delightful taste and texture of

this homegrown gem.

Kohlrabi Planting Guidelines

Allocate 3-5 feet of row space per person for immediate fresh use, and consider an additional

5-10 feet of row for storage or processing needs. Anticipate a yield of 5-7 lbs.

per 10 feet of row, ensuring an ample supply for various culinary purposes.

Nutritional Profile of Kohlrabi

Kohlrabi stands out as a nutritious addition to your diet. With zero fat content, it serves as a

healthy choice.

Furthermore, kohlrabi is a commendable source of dietary fiber and potassium, offering not only

a flavorful culinary experience but also contributing to a well-balanced and nutrient-rich diet.

Frequently Asked Questions

Some of my kohlrabies are tough and woody. Is that normal?

Harvesting Kohlrabi

For optimal quality, harvest kohlrabi when the stem reaches a diameter of 2-3 inches.

Allowing it to grow beyond this point may result in a woodier texture.

When preparing kohlrabi for consumption, ensure to peel off the outer layer, as it tends to be

tougher compared to the inner part of the stem.

This simple step enhances the overall eating experience, offering a crisp and tender texture in

every bite.

 

Aqsa Kanwal

Aqsa Kanwal