First leaf

Record first leaf when the leaf is fully open and recognisably the shape, if not the full size of the adult leaf. 

If you have recorded sycamore events before, please continue to record on the same tree.

Expected Date Range: late March to early May 

Available historic data: we have individual records from 1753-1810, and from 1819-1939. We have some records from 1940-1947, from 1988-1999.