We started by cutting lengths of this year's growth from our Weeping Willow. You can see from the photos that the bark is still a wonderful mix of yellow and green. We stripped the leaves from what we had cut, leaving us with lengths that were approximately 1 - 1.5m long. These young sticks are very pliable and easy to use, earlier in the year we cut some and used them to make these rustic willow balls, which we used as bird feeders.
Weaving the wreath itself is very simple. We start with our thicker sticks, and finish with the thinner. Take your first stick and weave it into a rustic hoop the diameter you want your wreath to be, leaving the tail piece from where you started, sticking out of your ring (as shown in the photo below).
As you add more sticks, you will find that the wreath holds itself together under tension, and it'll be easy to tuck in the smaller ends as you weave. Some of the tails will also start to lie flat, and be incorporated, but don't worry about any that continue to stick out, as these can be trimmed off at the end.