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 is a remarkable substance resulting from the decay of organic material such as kitchen scraps, weeds, shredded paper, leaves, and other things we otherwise would just throw away. Provides low, steady, balanced nutrition to plants. It holds nutrients in the root zone keeping them available for plants to use.