I have orchids growing in a attic room on a large gravel tray humidity is
good & heat also.I have a fan, is it advisable to keep it running in
winter,if so for how long?hours.I have just moved from growing on window
sills to the attic room.i havent the room for a greenhouse yet but that will
be next but i will have to move house first!
thanks kenty,England UK.