Our Foliage-fibre Clusters make unbelievable realistic foliage. fibre clusters are ideal for creating a variety of foliage. They come in seasonal colours to make trees, weeds, bushes and undergrowth. These thin, poly-fibre clusters can be stretched to match your landscaping needs. The results are airy trees, realistic vines, authentic weeds, bushes and undergrowth. The clusters bring landscapes to life. This pack includes Medium Green in 'course' foliage.