How to Grow Celery Root

Written by kali cozyris
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How to Grow Celery Root
The bulbous root of celeriac is the edible part, not the leafy stalks. (Stockbyte/Stockbyte/Getty Images)

Celery root is a tasty vegetable similar to conventional celery in flavour, but resembling a turnip in size and a lumpy potato in shape. Commonly referred to as celeriac or knob celery, this nutty-tasting vegetable has its roots in Mediterranean cuisine as well as in Mediterranean soil, where it is predominantly grown. Celery root requires a long harvest period, usually 120 days.

Skill level:
Moderately Easy

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Things you need

  • 4-inch planting pot
  • Sterile potting soil
  • Compost or fertiliser
  • Clear cling film
  • Rubber band
  • Large planting pot

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  1. 1

    Start your celery root seeds indoors, 10 weeks before your last expected frost date. Soak your celery root seeds overnight to aid in germination.

  2. 2

    Dry the celery root seeds on a paper towel.

  3. 3

    Fill the 4-inch planting pot with sterile potting soil. Add the seeds to the top and press them gently into the soil. The seeds require some sunlight, so do not bury them deep in the soil.

  4. 4

    Add water to the pot's tray and allow the soil to drink the moisture in from the bottom as opposed to watering from the top down. The seeds are in a fragile stage at this point.

  5. 5

    Attach a piece of clear cling film over the top of the 4-inch planting pot and hold it in place with the rubber band. Poke holes in the cling film. You have just created a mini-greenhouse which will help the seeds germinate. Celery root seeds germinate best at 21.1 degrees Celsius.

  6. 6

    Transplant your celery root seeds to the garden or individual pots (one seed per pot) after they grow to 1/2 inch tall. Plant them in the garden 8 inches from each other as the celery root seeds need a lot of room for their bulbous roots to grow.

  7. 7

    Monitor the moisture of your celery root's soil. The roots require a good amount of moisture and rich food. Add compost or manure every two weeks to your soil to feed your plants.

Tips and warnings

  • Celery root grows best in temperate climates, but does require full sunlight.
  • While celery root thrives in sun, it doesn't do well with excessive heat.

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