The Hague - Hay fever plant spotted in The Hague


Hay fever plant spotted in The Hague

Published: 1 November 2018Modified: 12 November 2018

The hay fever plant Common ragweed (Alsemambrosia) has been found in the city. The plant triggers strong allergic reactions in people who suffer from hay fever. The municipality and Floristisch Onderzoek Nederland (FLORON) are calling upon residents to get rid of the plant. Read how you can do that.

Common ragweed originates from North America. It is advisable to get rid of the plants before they bloom, but in any case before they start making seeds. A single plant can produce many seeds which can still germinate after decades.

Common ragweed in bloom (photo: Ruud Beringen, FLORON)
Common ragweed in bloom (photo: Ruud Beringen, FLORON)

Remove plants

The seeds of the Common ragweed ended up in the Netherlands in birdseed. These plants can often be found in gardens around spots where birds are fed or where fat balls have been hanging. The best way to remove the Common ragweed is to pull out the plant by its root and all from the ground. It is important to wear gloves and not to dispose of the plant in your garden waste because the seeds will end up being spread through the compost.


Have you spotted the plant in the public space. Report this via Report a problem to the municipality. The municipality can then remove the plants.

More information

More information can be found in Dutch on This website provides information on suitable control method. There are also tips on how to recognise the plant.