Growing Carrot

Daucus carota : Apiaceae / the umbelliferae family

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

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

  • P = Sow seed

January: water well

September: broadcast sow

  • Easy to grow. Sow in garden. Sow seed at a depth approximately three times the diameter of the seed. Best planted at soil temperatures between 8°C and 30°C. (Show °F/in)
  • Space plants: 5 - 30 cm apart
  • Harvest in 12-18 weeks.
  • Compatible with (can grow beside): Onions, Leeks, Lettuce, Sage, Peas, Radishes, Tomatoes, Beans, Celery, Rosemary
  • Avoid growing close to: Parsnips, Beetroot, Dill, Brassicas, Fennel
  • Carrot harvest (commons.wikimedia.org - woodleywonderworks - CC BY 2.0)
  • A few seedlings
  • Very young carrot seedlings
  • Young carrot plants

A hardy root vegetable which grows well in deep cool soil.

Carrots take about 3 weeks to show themselves and the first leaves look like grass.

If broadcast sowing, mix with radish seeds which will germinate quickly and indicate the sown area. In hotter or dry areas, water well before seeding then cover with boards to maintain the moisture and cool soil for more successful germination. Check every week or so.

Over fertilised ground will produce split roots. Protect against carrot fly. It is best to put carrots in a different area of the garden each year for four or five years.

Culinary hints - cooking and eating Carrot

Steamed or raw carrots are tasty. Cook them in a small amount of water until nearly dry then add a pat of butter and teaspoon of brown sugar to glaze.
They can be added to most casserole-type dishes.
Grate raw carrots and add to salads

Your comments and tips

21 Oct 21, John (New Zealand - sub-tropical climate)
Do you have a recipe for use of kerosene on carrots? Thank you
10 Nov 21, Tony Baker (New Zealand - cool/mountain climate)
diesel or kerosene in a spray bottle will kill any broadleaf weeds and deter carrot fly. Don't go crazy with it though!
17 Nov 21, Graham (New Zealand - cool/mountain climate)
Years ago (it seems forever) living/working on the hydro dams along the Waitaki River in the South Is. we grew carrots... hoed between the rows to control weeds, and after the carrots had produced their first 2 feathery leaves it was just a light spray with kerosene... That did the job!
05 Sep 21, max guthrie (New Zealand - cool/mountain climate)
Hi I have had lots of trouble growing Carrots here near Arrowtown ( so do all our neighbours ) with Black Rot or Carrot fly I have tried Neim Prills and white sugar but we still get it quite badly do you have any tips. Cheers Max.
22 Sep 21, Tony (New Zealand - temperate climate)
Carrot fly seems to be getting rampant, you can buy resistant seed. One way to prevent them is to spray with diesel/kerosene which not only deters flies but kills weeds! The only sure way is to buy some biomesh insect screen and put it over the carrots as soon as you sow them. Make sure there are no gaps at the bottom though as the fly operate at about ground level.
11 Sep 21, Joss (New Zealand - temperate climate)
Hi Max, I have been growing carrots in large black plastic pots and have had no trouble with any bugs or nasty things. I sow the seed one by one in separate holes and in a circle around the pot, cover with some sacking and then lay a couple of largish stones to hold the sacking down till they sprout and then uncover them. I hope this helps. Joss Roberts
20 Aug 21, Eden (New Zealand - temperate climate)
Great tips. This is really a piece of helpful information.
14 Apr 19, Rob (New Zealand - cool/mountain climate)
Do carrots need a lot of sun
09 May 19, (New Zealand - sub-tropical climate)
Looks like NZ cool/mountain climate zone doesn't work for carrots. Try the aussie cool zone for carrots. Plants need sunlight 6-8 hours generally.
17 Apr 21, Michael (New Zealand - sub-tropical climate)
I find that difficult to believe given that all of the commercial carrot growing in the North Island is done in the volcanic plateau around Ohakune and Rataehi.
Showing 1 - 10 of 23 comments

Carrots: -- Germination minimum temp is 2c: optimum germination temp is 10c to 25c (the temperatures must be sustained). Seeds germinate over a 2-week period -- if crust forms on the top of the soil, germination will be restricted. *********** Optimum growing temps : 15C to 20C , with a minimum of 5C and a maximum of 24C Outside of the growing range (less than 5c or more than 24c) the carrot goes into "dormancy/holding pattern" with extreme temps killing the carrot. ********* Average days to harvest for carrots is 60 to 80 days. The days to harvest are calculated based on ideal growing conditions (temperatures/sunshine/water). *************** Having lived in your area MANY years ago – I can recall – and checked with environment Canada – Based on last year’s temp – June was a good month to start planting carrots – and September had decent carrot growing temps – as did the first week of October. I would plant carrots in semi-shade as Stoney Creek can get VERY HOT in mid-summer – and this is a problem for carrots that don’t like temps over 24c. ********* So, what I see is a total of 129 days of good carrot growing weather (June 01 – to the first week in October). You need 2 weeks for germination and depending on the type of carrot about 80 days to harvest: total of 94 days. If you plant starting June 01 – you can plant carrots every couple of weeks until around July 5th (07/05 plus 95 days yields a date in the first week in October). If you want to do only 2 plantings – then I would plant on June 01, and again the last week of June. This is based on 80 days to harvest – if you have carrots with a higher number of days to germination and/or days to harvest (like dragon carrots that take 90 days) – adjust accordingly. You need your last harvest in by the first week in October so count backward to find your last planting date. Bolero Nantes have the following stats: Germination 10 - 20 days and days to harvest 70. The site indicates that your last planting should be 3 months before your first expected frost date -- and it looks like your first expected frost date is October 15 -- which yields a last planting date of: July 15th which is a couple of weeks later than what I have calculated .... remember that Nobody can guarantee what your weather will be ..... when it comes to your last planting, I would error to the side of planting a little early -- and I would feel a little bit short on time with a July 15th planting...but I have heard of people planting later and doing just fine.

- Celeste Archer

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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.
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