How to Grow Celeriac in Your Garden

Learn How to Grow Celeriac

Want to learn how to grow celeriac? You’ve come to the right place. When grown in cool weather, Celeriac is easy to grow.

Celeriac is a root crop and a member of the Celery family. It has a celery-like taste. The root bulb grows to four inches in diameter or more. Sometimes called “knob celery”, most people know little if anything about Celeriac. Growing Celeriac requires a long growing season, up to 200 days. Due to the long growing season, very few gardeners try it.

Celeriac Plant Specifications

Days to Harvest: Harvest in 90 to 120 days, depending growing conditions.

Plant height: 19 to 23 inches tall.

Light Needs: Full sunlight to partial shade.

Ideal Soil pH: 6.0 – 7.0

Plant Hardiness Zones: 3 – 11

Plant Type: Annual.

Deer Resistant? No.

Native To: Asia, Europe, and the Mediterranean region.

Botanical Name: Apium graveolens Rapaceum

Nutrition Facts

One cup of raw, chopped Celeriac has approximately:

66 calories
14 g carbs
0 cholesterol
0.1 g fat
2.8 g fiber
2.3 g protein

Light Requirements

Celeriac plants grow their best in full sunlight. Provide the plants with at least six to eight hours of full, direct sun.

However, in hotter regions of the country, the plants benefit with shade during the middle of the day when the sun is the hottest.

How to Grow Celeriac Plants in the Home Garden

Due to its long growing cycle, Celeriac needs to be started indoors in most areas of the country. You will not likely find seedlings at garden supply stores. It may take an Internet search. The seeds are very fine. Sprinkle them on the top of the soil in a pot or container and lightly water them in.

Plant seedlings outdoors after the last frost date for your area.

Space seedlings four to six inches apart in rows 18 to 24 inches apart.

While Celeriac is slow-growing, it does not take as much care as its cousin Celery.

Grow Celeriac plants in rich soil. and full sun. Make sure to keep plants well-watered. Fertilize once a month with a general-purpose fertilizer.

And, it does not require blanching.

Also, See:

Plant Problems

Soil Temperatures

Ideal Soil pH

Insects and Pests

Slugs, Carrot Flies and Celery flies can infest Celeriac.

How to Grow Celeriac - Harvest Time

Days to Maturity: Approximately 200.

Harvest the small bulbs as they reach a couple of inches in diameter, thinning as you harvest. They can grow up to 4 inches in diameter or more. The smaller bulbs will naturally be more tender. If kept in a cool place, Celeriac will keep for several weeks.

Plant Hardiness

All members of the celeryfamily like cool to cold weather. And they can be among the first plants in your garden each spring. Start them indoors, and plant them before the last frost, freeze, or even snowfall.

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