Hi,
The builders planted two of these climbers against a trellis. Tiny white flowers in spring, then tiny blackish berries. Leaves all year round. They are of no merit, it seems to me, but blackbirds nest in them so I've kept them.
They are thugs, and take up a lot of room as they cling to anything they can and smother it. My garden is tiny!
Underneath is a mess of bare twigs, but all entwined so not easy to see where to trim.
Any advice?