Because it isn't very long, their coat is not appropriate to spin in order to make wool, but they do shed more in particular seasons. (petguide.com)
They shed heavily on particular seasons, and their fluffy coat needs to be brushed frequently. (dogingtonpost.com)
In other words, the things that most thrill us in one particular season tend to be short - lived and do little for us in the next. (relevantmagazine.com)