Shamrock plants might seem dead, but dormant period can be deceiving

The more bright, indirect light you are able to provide for the plants, the better color you will have in the leaves, along with improved flowering. The ideal room temperature for them is from 60 to 70 degrees Fahrenheit during the day, and 50 to 65 degrees at night, so most home environments should be fine. Try to keep them away from cold or hot drafts, if at all possible.