If you want a fast growing willow screen for next years shoots, no pun intended !
Cut 12" long pieces of willow about as thick as your finger.Cut one end on an angle and force them into the ground so only an inch protrudes.
Willow has vestigual roots under the bark.
They will grow at about 3-4 feet per year and give you a screen.This is as long as sheep or cattle don't eat them.
Graham