🌿 Lemon Basil – Outdoor Growing Guide

Like basil – no frost, no cold.

Frost Sensitivity
Very High
Min. Night Temperature
12°C
Safe transplanting threshold
Optimal Day Temperature
20–32°C
Ideal daytime range
Planting Season
Late Spring
Typical planting window

📅 When to Plant Lemon Basil?

Lemon Basil (also known as Zitronenbasilikum) belongs to the Herbs category and is suitable for outdoor planting from Late Spring onwards.

Use the Growing Temperature Sum (GTS) as a guide: Lemon Basil 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

Lemon Basil 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 12°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 Lemon Basil outdoors.

🌡️ Optimal Temperatures

Lemon Basil grows best at daytime temperatures between 20°C and 32°C. Night temperatures should not fall below 12°C.

🍄 Mold & Rain Tolerance

Lemon Basil 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

GrowPilot.guide calculates the current Growing Temperature Sum (GTS) for your location, shows the phenological season and gives you a daily personalised analysis – including frost warnings, mold risk and optimal planting time for Lemon Basil.

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🌱 Plan Lemon Basil with GrowPilot.guide

Get a daily personalised weather analysis for Lemon Basil – with GTS, frost warnings and planting recommendations for your location worldwide.

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