I've killed several over the years. Though I think my main mistake was the over-watering, they also need to keep out of drafts, get good light--they seem to be happy with full sun in the winter and filtered light in summer. They also like humidity, which is easy to maintain in my area and in my cinderblock building since cinderblock absorbs moisture. That would be the challenging factor in your climate. If you have a misting bottle, I'd try misting them a couple of times a day.