A box and whisker plot is a graphical method of displaying variation in a set of data. In most cases a histogram provides a sufficient display; however, a box and whisker plot can provide additional detail while allowing multiple sets of data to be displayed in the same graph. Some types are called box and whisker plots with outliers.
Can you compost Leylandii branches and hedge clippings - Yes. We were quite surprised to learn some experienced composters advise not to add Leyandii cuttings as they are apparently too acidic. Composting bacteria can remain active in all but the most acidic conditions.
Compost temperature is maintained between 55-65 degrees Celsius. The C:N (carbon:nitrogen) balance in the composting materials is approximately 25-30:1. The compost heap needs to be roughly 1.5m high. If composting material is high in carbon, such as tree branches, they need to be broken up, such as with a mulcher.