Budburst
As the green buds swell you might see reddish pink inner bud scales. Record sycamore budburst when the colour of the new green leaves is just visible between the scales of the swollen bud. Leaves and flowers will come out of the same bud.
If you have recorded sycamore events before, please continue to record on the same tree.
Expected Date Range: mid-March to late April
Available historic data: we have records from 1999