Very cold-sensitive – only outside after ice saints.
Lemon Verbena (also known as Zitronenverbene) 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 Verbena 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.
Lemon Verbena 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.
❄️ Late frost risk: In many temperate climates, late spring frosts can occur well into May. Always check the 10-day forecast before planting Lemon Verbena outdoors.
Lemon Verbena grows best at daytime temperatures between 20°C and 35°C. Night temperatures should not fall below 12°C.
Lemon Verbena is relatively robust against mold and tolerates wetter conditions well. Still, always avoid waterlogging.
Rain sensitivity: Medium – Moderate rain is tolerated, but waterlogging should be avoided.
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 Verbena.
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