6 Poplar TIMING: summer (foliage, branches)
Zinc is often administered to cows in the North Island to prevent facial eczema. Poplar leaves, particularly Populus yunnanensis, are naturally high in zinc. Other benefits include: • falling leaves in autumn are eagerly consumed by sheep and cattle; • fast growing – branches can be cut and fed out; • grows well on dry sites; • stabilises soil; • good shelter. P. yunnanensis is also rust-resistant and unpalatable to possums.