i've spoken to people,who have .it takes a full season for the bulb to right itself.,,.i dont know whether you have seen those[stupid]'twice flowering' liliums for sale,but it works on that basis-you buy an ex-programmed bulb,[ex cut-flower stock] it flowers in winter,then flowers again in summer..'then more than likely departs life'---i think they are sold as a novelty.,..a lot of famous lilium bulbs as long as 20 years ago,were sent here from USA and are now responsible for some of our great hybridising feats.i knew an old lady[now departed this life] who recieved a novelty drink mug ,every christmas,from a friend in Oregan.There was always an interesting subject,packed safely inside.