When I received the advice to fully cut back the willow growth after year 1, I was far from certain that it world work. The theory is that it allows the root systems further development and that growth rates would significantly increase after this.
The pictures below show the year 1 willow beside the year 2 tree. Bear in mind that in December, both were the same height as the year 2 were cut back.
Year 2 on left, Year 1 on right
Year 2 on right, Year 1 on left
The year 2 plants have almost 1m growth, whereas the year 1 plants have about 200mm. Surprisingly, the Year 2 whips have increased in both height (from 600mm to 1m) and girth (from 12mm to 25mm) quite dramatically.
As you can see, I had to look after weed control again. An afternoons strimming followed by weed killer did the job.
Now that I have two double rows, I can see the plantation taking shape.
I have an osier plantation that I cut down to the base every year. It puts on approximately 14 feet of growth in a season, up to an inch and a half thick. It really is astonishing - happy to send you some cuttings if you like. I don't spray weedkiller either, I mulch with cardboard and woodchip - it's a lot of work for a big plantation like yours, though, but arguably better for the environment.
ReplyDeleteI harvest mine as 12 inch rods - planting them halfway into the ground (have my own bamboo here too, so don't need to buy canes, but I do use rabbit spirals to begin with).