Growing Dicksonia Antarctica Indoors.
Dicksonia I think your best bet now is to put it in the coolest room in the house and put it on a pebble tray to increase the humidity around it.The tray needs to be wet but the pot does not want to be sitting in water.In the wild it is an understory plant so does not want direct sunlight. Next season I would pot it up in an ericaceous compost with added humus and put it in a shady place in the garden. It can survive temperatures up to -10 C. However in its native habitat it does not have the stop start winters that we have.You can protect if outside however by wrapping it in horticultrual fleece and putting straw etc. in the top of it until the worst of the winter has passed.What it really needs is the humidity and humus rich root run.