Semiterra
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Courgette (zucchini): when to sow, plant out and harvest

Also called: Zucchini.

Sowing, planting and harvest dates for your climate, good and bad companions, growing tips.

When to sow in your region

Average dates, computed from the frost dates of each climate. For your exact dates, choose your town.

ClimateSow under coverSow outdoorsPlant outHarvest
Northern France25 March – 7 April29 April – 12 May22 April – 12 May1 July – 31 October
Atlantic coast15 March – 28 March19 April – 2 May12 April – 2 May21 June – 4 November
Eastern France17 March – 30 March21 April – 4 May14 April – 4 May23 June – 29 October
Mediterranean11 February – 24 February18 March – 31 March11 March – 31 March20 May – 20 November
Mountains (around 1,000 m)19 April – 2 May24 May – 6 June17 May – 6 June26 July – 29 September

Growing

Family
Cucurbitaceae
Latin name
Cucurbita pepo
Cold tolerance
Tender (killed by frost)
Soil temperature to germinate
16–20 °C minimum
Emergence
3–12 days
Between rows
100–120 cm
In the row
80–100 cm
To harvest
50 days

Companion planting

The level of evidence is shown for each pairing: many rest on tradition rather than on studies.

Good neighbours

  • BasilTradition
  • French bean (bush or climbing)TraditionSources disagree
  • BuckwheatTradition
  • French / African marigoldTradition
  • NasturtiumTradition
  • OreganoTradition
  • PotatoTradition
  • RadishTradition
  • Sweet cornTradition

Keep apart

Sources