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Carrot

Crop profile

Carrot crop profile

A direct-sown root crop, best grown in fine, obstacle-free soil for even root development.

Italiano

Starting method

Direct sowing

Direct soil

4 °C

Transplant soil

not available

Night minimum

1 °C

Frost buffer

-14 days

Heat stop

30 °C

Harvest

60–85 days

Indoor lead

not available

Key temperatures

  1. 0
  2. 5
  3. 10
  4. 15
  5. 20
  6. 25
  7. 30
  8. 35
  9. 40 °C
  • Below 4 °CCold risk: slower growth or cold damage.
  • 4 °CMinimum threshold to start direct sowing: 4 °C.
  • 4–25 °CBest range for growth and production.
  • 25–30 °CPerformance drops and plants move into stress.
  • Above 30 °CPause transplants: heat stress risk.

Carrot cycle

  1. 1. Start

    Method:
    direct sowing

  2. 2. Direct sowing

    Soil: at least 4 °C
    Night minimum: at least 1 °C

  3. 3. Growth

    Ideal temperatures 4–25 °C
    Avoid peaks above 30 °C

  4. 4. Harvest

    First harvest around:
    60–85 days after sowing

How to start

  • Recommended method: direct sowing.
  • Prepare the bed when soil and nights are stable.
  • Sow when soil has reached at least 4 °C and nights stay above 1 °C.

Temperatures to respect

  • Direct-sowing soil: minimum 4 °C.
  • Night minimum: minimum 1 °C.
  • Heat stop: 30 °C.
  • Suggested frost buffer: -14 days.

Harvest timing

  • Cycle to first harvest: about 60–85 days.
  • Harvest gradually as produce reaches maturity.

Seasonal notes

  • Protect young plants from late frosts and thermal swings.
  • In summer, avoid water stress and heat peaks above 30 °C.
  • Steady growth improves development and harvest quality.

FAQ and sources

When should you sow carrots?

Sow carrots directly when the soil is workable and at least around 4 °C, with nights above about 1 °C. They can start fairly early, but germination is slow in cold weather. Autumn or late-summer sowing is possible where the climate stays mild. The typical cycle is 60-85 days, with baby carrots ready sooner. Sow small amounts often so you get roots of different sizes and a spread-out harvest.

Why should carrots not be transplanted?

Carrots should be sown where they will grow because transplanting disturbs the main root. If the tip of the young root bends or is damaged, the carrot can fork or grow crooked. Prepare a fine seedbed without stones or hard clods, then sow in shallow drills. If your soil is heavy or stony, choose short or round varieties. Avoid fresh manure too, because it can encourage branched and hairy roots.

How can you prevent carrot fly?

The most practical defence is insect netting placed immediately after sowing and sealed well at the edges. Carrot fly moves low over the ground and lays eggs near the plants; the larvae tunnel into the roots. Thin carefully and close the net again straight away, because the smell of bruised leaves can increase risk. Rotate the crop and do not sow carrots in the same spot every year. Later sowings can also miss some pest peaks.

Why do carrots split or become woody?

Carrots split when water arrives in sudden bursts: a dry spell followed by heavy watering or rain makes the root swell too fast. Keep moisture steady, especially in pots and sandy soils. They become woody if left too long in the ground, grown in excessive heat, or exposed to stress. Harvest them when they reach the right size for the variety. Do not always aim for the biggest carrot: it is often less sweet and more fibrous.

Can carrots be grown in pots?

Yes. Carrots grow well in pots if you choose the right container. Long varieties need depth; shallow boxes are better for round or short carrots. The compost must be fine, free-draining, and without large pieces that deform the roots. Sow fairly densely but thin early, leaving enough space between seedlings. In pots, water is critical: the mix must not dry out completely, but it should not stay soggy either. Harvest young for sweet, tender roots.

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