Subject the Neofinetia falcata plants to a 20 degree F temperature
differential between day to night for 3 weeks straight. At night place
special frozen chemical plastic freezer packs on a tray, put the pot on the
tray then cover everything with a cheap styrofoam beer cooler. Punch a
turkey temperature probe through the box top to monitor the temperature...
lift and prop the edge of the box up to let warmer ambient air into the
space if needed to keep the temperature right.

Mick