A: We've seen this one a lot lately. Some have even sent pictures showing us their HUGE white ginger plants (hooray), but alas, no blooms.
It does take a few years, typically. Make sure that the root is in a pot that has sufficient room (at least a "three gallon" sized one). If that's not an issue, then try more sunlight. For more specific help, send us an email and let us know more details.