Growing Celeriac

Apium sp. : Apiaceae / the umbelliferae family

Jan F M A M J J A S O N Dec
                  S S  
T                     T

(Best months for growing Celeriac in New Zealand - cool/mountain regions)

  • S = Plant undercover in seed trays
  • T = Plant out (transplant) seedlings
  • Grow in seed trays, and plant out in 4-6 weeks. Sow seed at a depth approximately three times the diameter of the seed. Best planted at soil temperatures between 46°F and 70°F. (Show °C/cm)
  • Space plants: 18 - 31 inches apart
  • Harvest in 14-28 weeks.
  • Compatible with (can grow beside): Beans, brassicas, carrots, leeks, lettuce, peas, sage, tomatoes, onions

Your comments and tips

29 Feb 24, Roz (Australia - temperate climate)
Bolting is when the plant starts flowering and seeding. If you notice the flowering, pull the plant out. Unless you want to try seed-saving. I don’t know about celeriac, but lettuce turns somewhat bitter when it bolts.
08 Sep 15, CHARLES THENISCH (Australia - temperate climate)
I have been told to transplant celeriacs twice but I never had the opportunity to know at what stage of the growing of the plants I should transplant them. Can you let me know? Thanking you, Charles.
06 Apr 15, Gary Rios (Australia - tropical climate)
I'm in Melbourne now but moving to Philipnes soon and it's mostly hot and humid there. I'd like to know can I grow celeriac when I get get there. The soil is mostly well draining sandy
17 Sep 14, Melisse Clark (Australia - cool/mountain climate)
I thought I planted celeriac at the right time - May, but now Sept & no bulbs. It's been nice & damp, good drainage with compost pre-dug in, planted in full sun, but cool thru winter. They look like they've had to much nitrogen though I haven't used it. If I added potassium now, how long could I/should I leave them?
11 Sep 16, Taleya (Australia - temperate climate)
If the plants have survived, then leave them as is - they should hopefully start to swell up into bulbs and give you harvestable produce by december/january
29 Aug 14, Bobbie (Australia - sub-tropical climate)
I brought my seeds on ebay
23 Apr 14, Drago (Australia - temperate climate)
Masters, at least in Dandenong South Cnr St Gippsland Freeway & Princes Hwy, VIC we bought seedlings. It is funy that when I went now to search on line I could not find it
24 Sep 13, Amanda (Australia - temperate climate)
generally, lots of leaf but no bulb would mean too much nitrogen and not enough potassium. Nitrogen is used for leaf and stem growth, K is essential for fruit and flower formation. grow in soil that has had hungry plants like leafy greens of broccoli grown in it previously, and avoid high nitrogen manures, use well matured compost instead. The parent crops of modern cultivars of celery and celeriac grew in marshes, so make sure soil is deep and moisture holding. All through summer, it will be just leaves but the bulb will swell suddenly in a burst of metabolic resource direction in autumn/ early winter, in order to give itself food stores for the cold season. If temperatures are cool in your winter, you can leave in the ground unitl you need to harvest them.
23 Sep 13, Aaron (Australia - temperate climate)
I have been growing celery in my garden for the last 8 months, I decided to pull a few of them out and the bulbs on them were huge!! Is this also celeriac ?
19 Aug 13, Bob (Australia - temperate climate)
Can you eat celeriac leafy stems
Showing 31 - 40 of 81 comments

Ask a question or post a comment or advice about Celeriac

Please provide your email address if you are hoping for a reply


All comments are reviewed before displaying on the site, so your posting will not appear immediately

Gardenate App

Put GardenGrow in your pocket. Get our app for iPhone, iPad or Android to add your own plants and record your plantings and harvests

Planting Reminders

Join 60,000+ gardeners who already use GardenGrow and subscribe to the free GardenGrow planting reminders email newsletter.


Home | Vegetables and herbs to plant | Climate zones | About GardenGrow | Contact us | Privacy Policy

This planting guide is a general reference intended for home gardeners. We recommend that you take into account your local conditions in making planting decisions. GardenGrow is not a farming or commercial advisory service. For specific advice, please contact your local plant suppliers, gardening groups, or agricultural department. The information on this site is presented in good faith, but we take no responsibility as to the accuracy of the information provided.
We cannot help if you are overrun by giant slugs.