I grow most of them in 3 inch clay pots in a compost of 50% John Innnes which is a loam based one and 50% grit. The pots are topped with a layer of grit which keeps the rosettes of the compost and so dry. The pots are plunged on a sand bench with a soil warming cable set at 5c. Over the top I have a box with an opening lid made of wood and bubble wrap which I keep open unless a frost is threatened. When closed it keeps the air temperature at about 2c.
These mostly all form small tubers about the size of a thumbnail and I repot them in September and give them a first watering. The rosette forms in the autumn and the pots are kept moist during winter but it is essential that water does not get into the rosette. In late winter early spring they start to produce the flower shoots.At this time the new tuber is already formed. Soon after the leaves yellow and at this stage I stop watering and put the pots dry in the garage for the summer. I do not bake them. Division is not an option and apart from Ophrys insectifera they never produce an additional tuber.
No additional feeding but I keep careful watch for aphids which can be a problem with them being frost free.