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When to bring angel’s trumpets inside

Enter a German postcode. We show when angel’s trumpets should come inside: from the cold limit in expert sources and the night-time lows where you are.

Where are your pots?

Average for Germany

Bring in by

6 September

In 9 out of 10 years it did not get colder than 5 °C (41 °F) before this. On average from 22 September.

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).

How much cold can angel’s trumpets take?

Bring in before it gets colder than 5 °C (41 °F). (Natur im Garten, Austria)

Other sources say

We use the most cautious figure from the expert sources.

Winter quarters

Bright or dark, 4–12 °C (39–54 °F) (Saxon Garden Academy)

Back outside

After the last frost. On average for Germany it is over by 19 April, in 9 out of 10 years by 6 May. (RHS)

Questions and answers

When should angel’s trumpets come inside?

Natur im Garten, Austria: bring in before it gets colder than 5 °C (41 °F). On average for Germany it gets that cold from 22 September, and not before 6 September in 9 out of 10 years.

How much cold can angel’s trumpets take?

Natur im Garten, Austria: bring in before it gets colder than 5 °C (41 °F). Other sources say: Bavarian Garden Academy: before the first frost; Rhineland-Palatinate Garden Academy: before the first frost.

How do you overwinter angel’s trumpets?

Bright or dark, 4–12 °C (39–54 °F) (Saxon Garden Academy).

When can angel’s trumpets go back outside?

After the last frost. On average for Germany it is over by 19 April, in 9 out of 10 years by 6 May.

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Related

Last frost date by postcodeAverage and safe date for German postcodesHardiness zone by postcodeHow cold it gets where you are, and what copesWinter vegetables and frost hardy plantsWhat stays in the bed over winter and copes with frost

Sources

Show 8 sources
  1. „Natur im Garten“ (im Auftrag des Landes Niederösterreich): Überwinterungsquartier Kübelpflanzen (Infoblatt)
  2. Bayerische Gartenakademie (LWG), Gartencast: Wann müssen Kübelpflanzen ins Winterquartier?
  3. Gartenakademie Rheinland-Pfalz (DLR): Kübelpflanzen überwintern
  4. RHS Find a plant: Brugmansia suaveolens (H1c)
  5. Sächsische Gartenakademie (LfULG), Ute Kroll: Überwinterung von Kübelpflanzen (Stand Februar 2009)
  6. Deutscher Wetterdienst, Climate Data Center: Tageswerte (Klima) der Stationen, historisch
  7. Deutscher Wetterdienst: Vorgaben für die Gestaltung des DWD-Quellenvermerks
  8. GeoNames: Postal Code Dataset (DE.zip)

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