Return of the Bee Orchid

A single Bee Orchid appeared much to my surprise in 2017. I searched the same area each year since but nothing has shown. Now four years later another specimen has appeared about a metre away from the original one. Information on the life cycle is scarce but there seems to be a general narrative that from seed to flower may be five or six years. That raises the question of whether the second Bee Orchid is a result of seeds from the first four years ago or from seed that has been in the soilprior to that and has developed from the management of that area over the last six or seven years.