Garlic Mustard (Jack-by-the-Hedge; Jack by the Hedge)

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Key for Garlic Mustard (Jack-by-the-Hedge; Jack by the Hedge)

Data range: 2000 - present
Data range: 1990 - 2000
Data range: 1980 - 1990

The adjacent map shows the individual reports of a particular plant or plants. The colour of the marker indicates the date range in which the sighting was made (see the key above). Each marker represents a distance of 20km, but this resolution can sometimes be increased with the use of the interactive map (see the link below). Generally speaking, the more recent the sighting the more relevant the data.

Need more detail? Please try the Interactive Map!

Special thanks to the National Bio-diversity Network (NBN) charity for creating the tools, allowing access to their databases, but also working to bring all our knowledge together: