Hi Glynn,
I don't have any adult plants in trough - none of the plants are big enough to have outgrown pots - but I do have a trough with Cyp seedlings growing on. Actually calling it a trough is perhaps a little ambitious, it is a polystyrene box used for broccoli supplies to greengrocers which has not been treated with a surface application of paint/sand.
The seedlings are growing in an inorganic medium of perlite and Seramis with the addition of a (very) little leafmould. During the summer when in growth, the box is placed where they receive the same watering regime as my potted adult plants. The watering is automatic and they receive a light misting for ten minutes in the morning and another ten in the evening; feeding is ideally about every second week, but realistically when I remember!
If I relied on hand watering I would probably lose plants this way as it's not always possible to do this whilst working (nearly) full time. The seedlings (a farreri x reginae cross) are currently in their third year, possibly another two years to go before flowering.
