250 years of spring
 

An index of first flowering


Your records have been combined with those we’ve collated back to 1753, to create a 250 year index of first flowering.
 
It has demonstrated that Britain’s plants are flowering five days earlier for every one degree C rise in temperature.
 
This shows that on average plants flowered 2-12 days earlier over the last 25 years compared with any other consecutive 25 year period. 

The index was published by the Royal Society.


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