When to dig up dahlias

Enter a German postcode. We show when to lift dahlias: from the first frost where you are, with sources.

Where are your pots?

Lift around

27 October

In 9 out of 10 years the first frost did not come before 12 October.

Based on past records, not a forecast · Data: Deutscher Wetterdienst (CC BY 4.0)

Data: Deutscher Wetterdienst, daily minimum temperatures 1991–2020, own calculation. Licence CC BY 4.0. Postcode coordinates: GeoNames (CC BY 4.0).

Shortly after the first frost, around 27 October. (Bavarian Garden Academy)

The Rhineland-Palatinate Garden Academy and the RHS say the same.

North Rhine-Westphalia Chamber of Agriculture says: before the first frost. (North Rhine-Westphalia Chamber of Agriculture)

Plant in late April, in cold areas not until after mid-May. (Bavarian Garden Academy)

When do you dig up dahlias?

Shortly after the first light frost (Bavarian Garden Academy). On average for Germany that is around 27 October.

How do you overwinter dahlias?

Dark, around 5 °C (41 °F) (Rhineland-Palatinate Garden Academy).

When can dahlias go back outside?

Plant in late April, in cold areas not until after mid-May.

Show 6 sources