Up north in the winter, the leaves are replaced with icicles.
HARRY AND THE POTTERS - "Everlasting Icicles"
When I lived at Privet Drive
The only candy that I got were
Icicles that Uncle Vernon plucked
From the gutter above the front door
And when I got to Hogwarts
What did I find
But an everlasting icicle
Oh how happy this made me
It's just like my favorite boyhood candy