E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Now called teagardens. Nothing to do with cherries; it is cheery fairsi.e. gay or recreation fairs. A cheering is a merry-making. Halliwell tells us that Cherry (or rather chery) fairs are still held in Worcestershire. Gower says of this
world, Alle is but a cherye-fayre, a phrase frequently met with.
This life, my son, is but a chery-fayre.MS. Bodl. 221 (quoted by Halliwell).