🌿 Courgette/Zucchini – Outdoor Growing Guide

Large-leafed – wind-sensitive, out after frost.

Frost Sensitivity
Very High
Min. Night Temperature
10°C
Safe transplanting threshold
Optimal Day Temperature
18–30°C
Ideal daytime range
Planting Season
Late Spring
Typical planting window

📅 When to Plant Courgette/Zucchini?

Courgette/Zucchini (also known as Zucchini) belongs to the Vegetables category and is suitable for outdoor planting from Late Spring onwards.

Use the Growing Temperature Sum (GTS) as a guide: Courgette/Zucchini can be safely transplanted once the local GTS has passed the threshold for Late Spring and no frost is expected. GrowPilot.guide calculates the current GTS for your location automatically.

🗓️ Tip: Always check the 10-day weather forecast before planting outdoors. The GTS is a helpful guide but does not replace a frost check for your specific area.

❄️ Frost Sensitivity & Protection

Courgette/Zucchini cannot tolerate any frost whatsoever. Even light ground frost (−1°C) can cause complete plant loss. Only transplant outdoors when night temperatures are consistently above 10°C and no frost is forecast for the next two weeks.

What to do in case of late frost?

❄️ Late frost risk: In many temperate climates, late spring frosts can occur well into May. Always check the 10-day forecast before planting Courgette/Zucchini outdoors.

🌡️ Optimal Temperatures

Courgette/Zucchini grows best at daytime temperatures between 18°C and 30°C. Night temperatures should not fall below 10°C.

🍄 Mold & Rain Tolerance

Courgette/Zucchini shows moderate sensitivity to mold. Take precautions during extended rain or very high humidity – good ventilation is important.

Rain sensitivity: Medium – Moderate rain is tolerated, but waterlogging should be avoided.

📱 Plan with GrowPilot.guide

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📚 Grow Guides for Courgette/Zucchini

Expert growing knowledge to help you cultivate Courgette/Zucchini successfully:

✂️ Training Outdoor spiral LST for wind-stable crowns Spiral LST forms outdoor plants in a ring around the edge of the pot or ground spikes. This creates a flat, li…