Prune Salix

Could you please tell me what kind of willow 'Flamingo' is? Then I can look it up for you.

Cut back to a bud, large branches 9-12 buds, smaller branches 4-6 buds after leaf fall.
Remember to shape the head of your tree.

Doctorbob would you prune a young tree such as planted this year, or only a mature one.

Hi Chrispook,
Yes, they need to be pruned from the early stages, not until after leaf fall, shape the tree carefully so that it will grow into a nice shape later.

What about the non standard ones?

Follow the same instructions. Be harder on the thicker fonds and cut less off the thinner ones.
To get a better shape bend the larger fonds (tie them down with a weight or peg) out level with the smaller ones, then the hormone auxin will reach all the tips at the same time.
Remove the ties and weights in the spring.