Budburst

The winter buds are a reddish-purple colour, shaped like a club or boxing glove and attached to their twigs by a short stalk.

Record alder budburst when the first bud scale peels back and the colour of the new green leaf is just visible between the scales of the swollen bud.

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

Expected date range: early March to early May

Available historic data: our dataset starts in 2000